Fermax MDS Series Product guide

Pag. 1
Technical Book
MDS
MDS
GENERAL DESCRIPTION & MAIN BASIS ...............................................................................3
MDS DIGITAL ........................................................................................................................................3
MDS CITY ..............................................................................................................................................5
MDS DIRECT ........................................................................................................................................ 5
MDS DIGITAL COMBINED WITH MDS CITY ......................................................................................5
MDS DIGITAL COMBINED WITH MDS DIRECT ................................................................................6
MDS DIRECT COMBINED WITH MDS CITY ......................................................................................6
DECODERS ................................................................................................................................7
Audiodecoder 4 Ref. 4 4 & Audiodecoder 8 Ref. 4 5 ...................................................................... 10
Isodecoder Ref. 4 6 ........................................................................................................................... 10
Sensor decoder Ref. 4 9 ................................................................................................................... 11
Relay decoder Ref. 430 ...................................................................................................................... 11
Special Decoders: Panel decoder Ref. 436 .......................................................................................1
Decoder PC Interface Module Ref. 466 ............................................................................................ 13
Video Distributor 4 Ref. 418 & Video Distributor 8 Ref. 419 ..............................................................13
MDS Digital Central Unit ..........................................................................................................14
MDS P wer Supplies................................................................................................................17
FXL Netw rk Card Ref. 2428....................................................................................................17
PC Interface Card Ref. 2427 .....................................................................................................19
FXL Pr gramming M dule Ref. 2338.......................................................................................19
Rem te Pr gramming M dule Ref. 2467 ................................................................................20
MDS Repeater M dule Ref. 2339 .............................................................................................21
MDS Digital Panels ...................................................................................................................22
MDS Outdoor panels ............................................................................................................................
MDS Access control panels ................................................................................................................. 3
MDS Wall Guard Unit panel ............................................................................................................... 4
MDS Desktop Guard Unit ................................................................................................................... 4
MDS Direct Panels ....................................................................................................................26
MDS City Panels .......................................................................................................................27
Digitizer Module Ref. 444 ................................................................................................................... 8
Extension Call Pack Module Ref. 441 (16 pushbuttons) & Ref. 44 (3 pushbutons) ..................... 8
MDS Switcher Module Ref. 443 ......................................................................................................... 8
MDS City/Direct Guard Unit Ref. 46 ................................................................................................ 9
SCHEMATIC DIAGRAMS & THUMBNAILS (bl ck ic ns) .....................................................30
Thumbnails applicati n ............................................................................................................34
MDS BUS distribution. Video systems ............................................................................................... 34
MDS BUS distribution. Audio systems ................................................................................................34
MDS BUS distribution. Inserting aditional power supply ....................................................................... 35
MDS BUS distribution. Splitting the BUS in several branches in video installations. ..........................35
MDS BUS distribution. Splitting the BUS in several branches and additional power supply ..............35
MDS-DIGITAL outdoor panels ............................................................................................................ 36
Special application. KITS combined with MDS .....................................................................................36
Special decoders. PANEL Decoders. SENSOR Decoders. RELAY decoders .................................. 36
MDS DIGITAL C.U. forsingle blocks and G.Entrances in MDS DIGITAL comb with MDS DIRECT ...37
MDS Digital Central Units (condominiums) ......................................................................................... 37
MDS Digital Central Unit used in condominiums as general entrances............................................... 37
FXL Split ............................................................................................................................................... 38
MDS Digital Central Unit used in internal blocks in condominiums......................................................38
FXL repeater (MDS 1A) .....................................................................................................................40
MDS City/Direct for single blocks. One access only ........................................................................... 41
MDS City/Direct used as general entrance in condominiums .............................................................41
MDS City/Direct used in internal blocks in condominiums ..................................................................4
ANNEX: WIRING DIAGRAMS .................................................................................................45
INDEX

Pag. 2
Technical Book
MDS
MDS
PRACTICAL GUIDE AND GENERAL DIAGRAMS FOR INSTALLERS OF FERMAX MDS AUDIO & VIDEO SYSTEMS
10/00
This technic l document is issued by FERMAX ELECTRONICA S.A.E. for inform tive purposes, nd the right to modify
technic l ch r cteristics t ny time nd without previous w rning is reserved. These ch nges would be pplied to
subsequent editions of the s me.

Pag. 3
Technical Book
MDS
MDS
GENERAL DESCRIPTION & MAIN BASIS
The main features of the MDS systems are:
* Complete privacy of speech and door control, assuring privacy for your conversations.
* Standard terminals installed in the apartments.
* Bus type installation enables all possibilities of connection and extension.
* Floor distribution, making wiring fault and failure detection easy.
* Isolation, between terminals by means of the decoders.
without guard units.
There is no practical limit to the number of blocks, entrances, guard units or dwellings that a DS
system can manage.
The main feature that makes MDS Systems special is that they need no
call wires, so the installations are US type, with only one cable rising
through the building, interconnecting the Decoders installed on the floors,
in which the terminals corresponding to each floor are connected.
The call is generated in the decoder itself and sent to the telephone called.
In order to differentiate if the call comes from an outdoor panel or from a
guard unit, the call tone is different in each case.
Thanks to the US features, decoder and distributor installation split any
point of the installation into as many branches as required.
oth telephones and monitors can be basic models, but thanks to the
system features they work in privacy mode, that is, they are discon-
nected while they are not called, avoiding other telephones hearing the
conversation in which they are not concerned or opening the door.
For the same reason, a telephone that has been left accidentally off the
hook would not affect the rest of the system.
It is also possible, from these standard terminals, to receive and gener-
ate calls from/to the guard units.
This system is designed for medium to large installations in which the
traditional systems, with one call wire per telephone, would complicate
the installation.
For the same reason, this system is aimed at condominiums with one or
more general entrances (with or without guard unit) and several internal
blocks that can have, at the same time, one or more accesses with or
DEC OD ER Nº:
REF. 2 42 4 AU DIODECO DER 4
D2D1
PGM
-V
TELEFONO S/
TELEP HON ES
2134
6578
DEC OD ER Nº:
REF. 2 42 4 AU DIODECO DER 4
D2D1
PGM
-V
TELEFONO S/
TELEP HON ES
2134
6578
DEC OD ER Nº:
REF. 2 42 4 AU DIODECO DER 4
D2D1
PGM
-V
TELEFONO S/
TELEP HON ES
2134
6578
%86

'(&2'(56
We divided the MDS system into three types:
MDS DIGITAL
For installations in which any of these facilities are required:
 Searching resident's name through the outdoor panel display (electronic directory).
 Any type of access control and/or access restriction: proximity card readers, button key, numeric
keypad, etc. The system admits up to 32 accesses per Central, and manages access restriction
depending on different parameters: access number, day of the week and 3 timetable bands for each
user. See the MDS PC Programming Manual for further details.
 Additonal security (alarm system management, panic pushbutton to alert the guard or watching per-
sonnel, etc.). See the MDS PC Programming Manual for further details.
 Automation (lift control, lights on/off, watering sprinklers, etc.). See the MDS PC Programming Ma-
nual for further details.

Pag. 4
Technical Book
MDS
MDS
Note:
* Central Unit nº 0 is usually reserved for general entrances. No decoders are usually connected to it unless
there are single housing units (villas) and/or access control in the main installations, in which case, the
re uired decoders are connected.
The management capability of one MDS Central Unit is:
 Up to 32 panels. These panels can be:
- Access control panels
- Audio/video panels
- Guard Units
Guard units and Audio/video panels require a Switcher Module ref. 422
each one. The maximum number of Switcher Modules that one Central
Unit can allocate are:
Central Unit ref. 2420: 2 units.
Central Unit ref. 2421: 10 units.
This limits the maximum audio/video panels and guard units to allocate in
the same Central Unit.
 Up to 10.000 telephones or monitors
 Up to 1.000 sensor inputs
 Up to 1.000 relay outputs
 Up to 1.000 1L City audio panels (for single houses).
This capability can be increased with no practical limits, because it is possible
to interconnect up to 64 Central Units by means of the FXL (FERMAX LINK)
interface.
Each Central Unit can control up to 31 panels instead of 32, because one of them is used for the FXL (see
note).
The maximum number of Switcher Modules (and consequently the maximum mumber of audio/video
panels and/or guard units) are:
Every Central Unit ref. 2420: 1 units.
Every Central Unit ref. 2421: 9 units.
The number of telephones/monitors, sensors and relays for each central unit are listed above.
In these type of installations, usually in big condominiums with one or more general entrances and several
internal blocks, one Central Unit is used to control the general entrances. Each block is also controlled by
means of one Central Unit. All the Central Units are interconnected by means of the FXL.
As this is a multiplexed system, both FXL and US DECODER can be configured as bus, star or a
combination of both.
NR-2055
PANEL 0
CT
SB
CT
PANEL 1
SA
SA
SB
+
6
2
-
M
V
6
2
-
+
V
M
+CTVM D26D 21 -+
DECODERS
INPUT
-
123
456
789
A0B
LCD DIGITAL SYSTEM
123
456
789
A0B
LCD DIGITAL SYSTEM
HIGH RESOLUTION
CCD CAMERA
PAN &TILT
DECODER Nº:
RE . 2424
MADE IN SPAIN
DECODER DE AUDIO 4
AUDIO DECODER 4
D2
BUS
BUS
+- D1
PGM
26
-V
6312 4 21346 41326 32164
6312 4213464132632164
TELE ONOS /
TELEPHONES
2134
6578
D1D2 62+-
DECODER Nº:
RE . 2424
MADE IN SPAIN
DECODER DE AUDIO 4
AUDIO DECODER 4
D2
BUS
BUS
+- D1
PGM
26
-V
6312 4 21346 41326 32164
6312 4213464132632164
TELE ONOS /
TELEPHONES
2134
6578
D1D2
62
+-
DECODER
DECODER
CENTRAL
UNIT
GUARD UNIT OUTDOOR
PANEL
CENTRAL Nº 01
INTERNAL BLOCK
PANEL ....
Nº 0
PANEL
Nº 1
PANEL
Nº 9
BUS DECODER
CENTRAL Nº 02
INTERNAL BLOCK
PANEL ....
Nº 0
PANEL
Nº 1
PANEL
Nº 9
BUS DECODER
CENTRAL Nº 63
INTERNAL BLOCK
PANEL ....
Nº 0
PANEL
Nº 1
PANEL
Nº 9
BUS DECODER
CENTRAL Nº 00
GENERAL ENTRANCES
PANEL ....
Nº 0
PANEL
Nº 1
PANEL
Nº 9
XLXL
XL

Pag. 5
Technical Book
MDS
MDS
MDS CITY
uildings up to 100 dwellings and up to a maximun of 15 entrances in which, for aesthetic or functional
reasons, pushbuttons panels are preferred.
Calls are made by pressing the corresponding pushbutton.
Neither access control nor automation are possible, since relay and sensor decoders are not admitted.
MDS DIRECT
uildings up to 100 dwellings and up to a maximum of 15 entrances, in which for aesthetic or functional
reasons a numeric keypad is preferred for calling dwellings . You can call a dwelling by tapping the
dwellings number on the keypad.
A directory installed beside the numeric keypad is needed to state the name and number of each
dwelling. The keypad also allows access control for 100 users.
Condominiums with a main entrance and up to 100 internal blocks
Neither access control nor automation are possible, since relay and sensor decoders are not admitted.
MDS DIGITAL COMBINED WITH MDS CITY
Condominiums up to 99 internal blocks. Each block with
a maximum of 99 dwellings, 31 general entrances and 1
guard unit.
Several linked central units allow us to reach 6,237
blocks, maximum 99 dwellings each.
One conversation per block is possible simultaneously.
Meanwhile, another communication is possible between
the general entrance and any free block.
In the case of small condominiums (maximum 100 apartments per block) it is possible to use one Central
Unit only, with one, two or three Outdoor Panel for each block, sharing the decoders between the blocks.
Guard Unit and /or general entrances are also possible, but taking into acccount that the maximum number
of panels is 10. This is the called ultistair System, only available with DS V 3.1 or higher.
MDS CITY panels are connected to the US DECODER. Decoders of each block are connected to
the corresponding MDS CITY panel.
Panels connected to the Central Unit are used for general entrances only.
It is also possible to connect audio decoders to the central unit (i.e. for single houses in the
condominium) and sensor/relays decoders, for security or automation purposes.
DIGITAL
BLOCK 1 BLOCK 2 BLOCK 99
U.C. MDS
...............
19
19
19
31 1
123
456
789
A0B
0
8
5
2
A
7
4
1
B
9
6
3
MDS CITY
CENTRAL Nº 00
....
PANEL
Nº 0
PANEL
Nº 1
PANEL
Nº 1
PANEL
Nº 1
DECODER BUS DECODER BUS DECODER BUS
BLOCK 1 BLOCK 2 BLOCK 9
GENERAL
ENTRANCE

Pag. 6
Technical Book
MDS
MDS
MDS DIGITAL COMBINED WITH MDS DIRECT
MDS DIRECT COMBINED WITH MDS CITY
This system has been devised for office buildings in which there are several offices on each floor. It is also
suitable for small condominiums, using MDS DIRECT for general entrances, and MDS CITY for blocks.
Condominiums up to 15 internal blocks. Each
block with a maximum of 99 dwellings, 31 gene-
ral entrances and 1 guard unit.
Several linked central units allow us to reach 6,237
blocks, maximum 99 dwellings each.
One conversation per block is possible
simultaneously.Meanwhile,another
communciation is possible between the general
entrance and any free block.
Office buildings. In the main access to the building
we install a MDS DIRECT panel for calling any offfice
in the building, and in each of the floors we install a
MDS CITY for calling the offices in this floor.
One conversation per block is possible simul-
taneously. Meanwhile, another communciation is
possible between the general entrance and any free
block.
 Neither access control nor automation are possible,
since relay and sensor decoders are not admitted.
 MDS DIRECT panels are connected to the US DECODER. Decoders of each block are connected
to the corresponding MDS DIRECT panel.
 Panels connected to the Central Unit are used for general entrances only.
 It is also possible to connect audio decoders to the central unit (i.e. for single houses in the
condominium) and sensor/relays decoder, for security or automation purposes.
31 1
DIGITAL
U.C. MDS
BLOCK 1 BLOCK 2 BLOCK 99
...............
1919
0
8
5
2
A
7
4
1
B
9
6
3
0
8
5
2
A
7
4
1
B
9
6
3
19
0
8
5
2
A
7
4
1
B
9
6
3
0
8
5
2
A
7
4
1
B
9
6
3
12 3
45 6
78 9
A0B
0
8
5
2
A
7
4
1
B
9
6
3
0
8
5
2
A
7
4
1
B
9
6
3
0
8
5
2
A
7
4
1
B
9
6
3
MDS DIRECT
O ICE 1
MDS CITY
O ICCE 99
...............
0
8
5
2
A
7
4
1
B
9
6
3
1
MDS DIRECT
15
0
8
5
2
A
7
4
1
B
9
6
3
180%(52)
%/2&.6 180%(52) $&&(66(6 86(563(5 %/2&. *(1(5$/ (175$1&( )($785(6
0'6&,7< 99 15 99 NO • Standard CITYlooking.
•Programmable parameters: door release & conversationtime.
•One MDS-DIRECTGuard Unit.
0'6',5(&7 99 10 99 YES •Access keypad (100 codes).
•Displayfor programming MDS-CITY& MDS-DIRECT.
•One MDS-DIRECTGuard Unit.
0'6',*,7$/
0'6',*,7$/
64 32 10,000 YES •PC Management.
•SeveralGuard Units allowed.
•Electronic Directory: displaywith search feature.
•Individual Access Code.
•Specialdecoders management.
•Digital Controller features.
•Integral testing.

Pag. 7
Technical Book
MDS
MDS
DECODERS
These are the interface between the MDS US and the external devices (telephones, alarm sensors, etc.)
There is no limit to the number of decoders connected to an MDS system. The maximum number depends
on the devices connected. In any case, these specifications must be followed:
* Distance from the decoder to the telephone/monitor must always be less than 100 m.
*aximum distance between the last decoder, and Outdoor Panel (or Central Unit), without repeaters
is 1.200 m.
*aximum number of decoders without repeaters is 120.
The MDS US is common for all types of decoders, independently of the decoder type. The connection
between the decoders and with the outdoor panel (or central unit) is by means of a bus consisting of 4
wires + 1 twisted pair (FERMAX cable REF.5918):
There are 7 different types of decoder to be used in the MDS systems.
 Audio decoder 4. Used in standard installations. Provides connection for up to 4 telephones.
 Audio decoder 8. The same as above, but providing connection for 8 telephones.
 Audio Isodecoder 4. In addition to the audio decoder 4, provides total isolation of each telephone
from the rest of the installation (including the other telephones in the systems) and other panic calls.
 Sensor decoder. Provides up to 8 alarm sensor inputs.
 Relay decoder. Provides up to 8 relay contact outputs.
 Panel decoder. Provides connection up to 4 standard 1 line City Panel.
All of them have the same appearance, with some parts that are common to all of them. These parts are
represented in the diagram below. Some specific parts of each one are represented in other diagrams.
D2D1
62
6
2
13
422
1
2
6
3
4
163
4
16
3
4
5768
AUDIO DECODER 8
DECODER DE AUDIO 8
DECODER Nº:
TELE ONOS / TELEPHONES
PGM
BUS
- V
BUS
MADE IN SPAIN
ERMAX
RE . 2425
12 43
LED indicator
(see text on next page)
PGM button
MDS BUS connector
Telephone jac soc et
(only audio decoders)
PGM
BUS
- V
BUS
PC Programming connector (under the cover)
0,5 A protection fuse.

Pag. 8
Technical Book
MDS
MDS
Since the decoders are digital devices they must be programmed before being used.
They can be programmed once installed or even in your warehouse (before installation), because the
assigned codes (telephone numbers) are stored into each decoder (EEPROM memory) and are not de-
leted even in case of power failure. However, the settings can be updated as many times as required.
See the MDS Programming Manual for further details.
Programming process is different depending on the system where they are being installed: DS-DIG-
ITAL, DS-CITY or DS-DIRECT. See the instruction manuals for details. In any case, the decoders can
be programmed from a PC using the Programmer Module Ref. 2427, which also includes the required
software (DECOWIN). This module is inserted into the Programming connector.
In any case, use a small screwdriver to press the PG button, through the hole when the system requires
it, in order to codify the lines of this decoder. See diagram on the previous page.
It is also possible to program the decoders from the telephones, if audiodecoder is V1.1 or
higher, and always in DS Digital installations, it not being necessary to press the PG but-
ton at the decoder, just the lock button on the telephone. See the DS Programming anual
for further details.
The LED indicator in the decoders gives us important information about their status:
OFF: decoder still has not been programmed.
ON: decoder is in programming mode.
BLINKING: decoder has been codified and is working.
* blinks twice every 3 seconds: indicates that the Central Unit in which the
decoder is connected to is in day mode.
* blinks once every 3 seconds: indicates that the Central Unit in which the
decoder is connected to is in night mode.
The DAY and NIGHT modes are a property of the central unit.
The audiodecoders have a telephone jack socket which gives the installer the possibility to plug-in a
standard FERMAX handset to speak from the decoder to an outdoor panel or to any telephone connected
to this decoder.
This telephone jack, which is connected directly to audio lines of the US installation, is a great help to the
installers when they are programming the system. An installer can stay at the outdoor panel for program-
ming, while another goes by the decoders pressing the PGM button (or the lock telephone button if possi-
ble).
oth can talk to each other through the handset connected to the telephone jack socket on the decoder
that they are programming at any time).
The technical data for each kind of decoder is:
Audiodecoder calling: 400 mA
Audiodecoder in stand-by: 40 mA
Sensor decoder: 40 mA
Relay decoder: 160 mA (maximum)
Operating voltage: 12 Vdc (minimum 10 Vcc)

Pag. 9
Technical Book
MDS
MDS
Another important point to take into account (regarding the decoders) is that the voltage along the bus-line
may drop, due to the wire resistance. To avoid this, it is necessary to install additional 12 Vdc power
supplies to regenerate the 12 Vcc in long installations.
You can use for this the REF.8840 Power Supply or the REF.8837 (12 Vdc 0,75 A), which can be enough, in
somes cases, to keep the voltage level in range. See table and explanation below.
On the other hand, in installations where the decoder bus wires are very long we recommend using a
bigger wire section.
The next table shows how many decoders can be installed in terms of the distance and section of wire
utilised.
It shows the number of decoders that can be connected in relation to the power supply point (before having
to instal an additional one), the wire section used and the type of power supply, ref.8837 or ref.8840 (in blue,
between brackets).
* In the left-hand column is the distance that a power supply can cover.
* In the top row the section of the wires to be used.
* In the intersection is the maximum number of decoders that may be connected with these specifica-
tions. (In blue, in brackets, if using a Ref. 8840 supply, whereas the others refer to Ref. 8837.)
Example:
We have to stretch 20 decoders along 500 metres (1 decoder each 25 mts aproximatelly) in a very
long installation.
* We are using 10 decoders every 250m, so the best option is to use 3 mm2 wires. Then we only need
one support power supply at 250m from the central unit. The first 250m are powered by the power
supply in the central unit.
* If using 1 mm2 wires, we would need to add one power supply every 150m (we are using
approximately 7 decoders every 150m). We would need 3 additional Ref. 8837 power supplies.
'LVW6HFFLyQ PP

PP

PP

PP

P 10 10 (15) 10 (22) 10 (30)
P 7 9 10 (15) 10 (22)
P 57910(17)
P 46810(13)
P 4 5 7 10 (11)
P 3469
P 2357
P 2346
P 1234
P 1224
P 1123
.P 1123
We can "play" with these parameters in order to find
the most suitable relation between the wire section
and the number of power supplies required.
Note:
* The wire section of the Ref. 5918 cable recommended by FERMAX for bus installation is 1 mm2.
* If we can plan the structure of the installation, it is best to use "star" topology as much as possible . This
would reduce the total distance between the central unit and the last decoder in each branch, and
conse uently the number of additional power supplies.
* In any case, using thick wires in very long installations is the best, because this is the only way to avoid the
audio level decreasing.

Pag. 10
Technical Book
MDS
MDS
Audiodecoder 4 Ref. 4 4 & Audiodecoder 8 Ref. 4 5
These standard decoders are used for audio/video installations.
The telephones connected to a decoder are isolated from the rest of the installation (except the ones in the
same decoder). Any fault in a telephone will not affect any other in the installation, except the ones installed
in the same decoder (possibly affected).
Once programmed, the decoder receives the call code from the decoder US and generates a call signal
to the corresponding telephone if the code is acknowledged, connecting audio bus to this telephone. After
the conversation, decoders detect when telephone is hang up and cut communication.
Each decoder output (telephone connector) works as a standard City Panel 1AP101, with the corre-
sponding connections:
nº 1: power supply to microphone (electret type)
nº 2: audio from telephone to panel
nº 3: negative
nº 4: call signal
nº 6: audio from panel to telephone
The maximum amount of terminals to be connected to each output is 3 telephones (for the same apart-
ment). The more telephones installed, the lower the call sound.
PGM
BUS
- V
BUS
D2D1
62
6
2
13
422
1
2
6
3
4
163
4
16
3
4
5768
AUDIO DECODER 8
DECODER DE AUDIO 8
DECODER Nº:
TELE ONOS / TELEPHONES
PGM
BUS
- V
BUS
MADE IN SPAIN
ERMAX
RE . 2425
12 43
V connector (to synchronize
distributor in video installations)
Telephone connector
4 units in ref 2424
8 units in ref 2425
PC Programming connector
0,5 A protection fuse
Isodecoder Ref. 4 6
In addition to the audiodecoder features, isodecoders have individual isolation for each output. This means
that a failure in any telephone would not affect the rest of the installation, including telephones connected to
the same decoder. Moreover, isodecoders have extra features, such PANIC CALL terminal and activation
signal. Therefore, apart from the standard terminals that every decoder has, some extra terminals are
included for each output:
nº X: for special functions (to turn on a busy line LED in the telephones, generally)
nº P: panic call input (only in MDS-DIGITAL using panic call features)
D1
6
D2
22X
X1+
3
6
4P
2
X
+1P
6
34
X
1
AUDIO ISODECODER 4
ISODECODER AUDIO 4
TELE ONOS / TELEPHONES
PGM
BUS
BUS - V
RE . 2426
DECODER Nº:
MADE IN SPAIN
ERMAX
34
2
2
T
V connector (to synchronize
distributor in video installations)
Test jumpers:
T-Communicates telephone with the test handset
N-Normal operation.
Testing switch:
N-Handset connect with outdoor panel
T-Handset connect with internal telepone
selected with test jumpers.
Test handset jac
Test handset jac
X terminal (duplicated)
PC programming connector
and 0,5 A protection fuse
under the cover
LED indicator
is ON when the telephone is selected
Telephone connector
4 units

Pag. 11
Technical Book
MDS
MDS
Relay decoder Ref. 430
Provides relay outputs for alarm and automation purposes. Exclusively to work with MDS-Digital systems.
D1D2
26
NO NC
CC
NONC
C
NO NO
NC
C
NC
RELAYS DECODER
DECODER DE RELES
RELES / RELAYS
PGM
BUS
BUS - V
ERMAX
RE . 2430
DECODER Nº:
MADE IN SPAIN
5
13
2
67
4
8
2
RE . 2430
MADE IN SPAIN
DECODER Nº
:
V
BUS
D
2
D
-
1
+
D
R
NC
+
ON
C
NO
Sensor decoder Ref. 4 9
This decoder has been designed to work with MDS-Digital systems only
It has 8 sensor inputs that can be configured either to use N.O. (normally open) or N.C. (normally closed)
detectors by means of a jumper located beside each input. In both cases the activation signal can be sent
to the central unit immediately or delayed, depending on the "time" parameter that commands the alarm
signal.
Instant alarm: signal activation is sent to the central unit the moment that sensor activation is detected.
ear in mind that the detection stays on as long as the sensor keeps detecting. The time parameter for this
function is "0".
Delayed alarm: signal activation is sent to central unit when the sensor has been activated for a pro-
grammed period of time (from 1 to 127 seconds or minutes)
"Time"and "sensor number" parameters are programmed into the decoder, and stay programmed even if
it is disconnected from the electric power. The "sensor number" can be programmed either from any
keypad with display or through a PC (by means of the Ref. 2466 module and the DecoWin software).
"Time" parameter is always programmed through a PC. See the "PC Programming Manual" for more
details.
D1
2
D2
6S-S- S--S
SENSORS DECODER
DECODER DE SENSORES
DECODER Nº:
5
BUS
BUS
MADE IN SPAIN
ERMAX
RE . 2429
PGM
SENSORES / SENSORS
2
6
1
78
34
C1 C2 Cn
C3
RELAY
DECODER
Jumper P1
CN-12 terminal.
If P1 is in ON then the loop in CN-12
has to be closed ( ire protection).
If P1 is in O , then the loop in CN-12
is not controlled.
TEST jumper
(under the cover)
or TEST jumpers be enable, P1 has to be
in ON.
It has 8 relay ouputs, which can be configured either as flip-flop (relay toggles in each activation) or as
timed mode (closing time for each relay can be set from 1 to 255 seconds). For "timed mode" a timer starts
to count the moment the relay is activated, releasing it once the time has expired.
Another interesting feature is the
FIRE ALAR facility.
This feature is achieved by means
of a connector (CN12), to connect
in series all the sensors we want
to use for detecting fire(forming a
loop connection), that would open
the loop when a fire alarm is gen-
erated somewhere. This signal would cause all the relays to be released in case of danger, for instance
allowing all the inhabitats to exit (releasing door locks controlled by the relays).
ax. current through the relay contacts: 2A (120-220V)
NC/NO sensors selector
PC Programming connector
under the cover
LED indicator
is ON when the connected sensor
is activated
PC Programming connector
P1 CN-12
LED indicator
is ON when the connected relay is activated
TEST jumpers. For chec ing
relay output. To be operative,
P1 has to be set in ON.
Relay output (8 units)
Sensor connector
8 units

Pag. 12
Technical Book
MDS
MDS
PGM
BUS
BUS
220 Vac220 Vac
RE .8787 RE .8787
DECODER N§:
4
21
3
PLACA / PANEL
RE . 2436
MADE IN SPAIN
PANEL DECODER
DECODER DE PLACA
C2 A36P C3A2
P632AC6P
P
C23
26D1
-+ D2
A
6
D2
+- D1 62
SEC. 12VACPRIM. 220VACPRIM. 220VAC SEC. 12VAC
CP
P
C
A
2
3
6
3
-++ -
1/2 W.
15 ohm. 15 ohm.
T C
C
632A
4
1/2 W.
1/2 W.
CT
C
2
63
A
2
15 ohm.
P C
CP
632A
1
15 ohm.
Ref. 5920
Ref. 5920
Ref. 5922
Ref. 5922
1342 65
NR-2086
12 43
NR-2086
56
6
LCp
1
AbAb
23
L-
101CI14A
AMP. KIT SMD
EXT.
INT.
2
Cp
L
Ab
1
Ab
36
L-
101CI14A
AMP. KIT SMD
EXT.
INT.
2
Cp
L
Ab
1
Ab
36
L-
101CI14A
AMP. KIT SMD
EXT.
INT.
6
LCp
Ab
1
Ab
32
L-
AMP. KIT SMD
101CI14A
EXT.
INT.
C
226
D1 D2 3A
6
P3A
2
C
6
P
BUS
BUS
PGM
PLACA / PANEL
DECODER Nº:
RE . 2436
ERMAX
DECODER DE PLACA
PANEL DECODER
MADE IN SPAIN
1
34
2
- V
T
The wiring between DECODER and Panel is shown in figure below. As shown in figure, the City panels can
also be used to call to a standard telephone.
Terminals description:
C: Call to "standard" porter
2 & 6: Audio from Guard Unit to City panel and viceversa respectively
3: Negative
A: Door release control
P: Call to PANIC Guard Unit
T Call to telephone
C Call to porter
P Call to PANIC guard
Special Decoders: Panel decoder Ref. 436
Special decoder for hands-free communication system. It enables us to connect standard City panels to
the decoder instead of telephones. Moreover, by means of these decoders we can achieve a system with
standard panels in the tenant rooms (e.g. in hospital wards) allowing the patient to call a concierge or
porter. Then, they can attend the patient as required (priorities) allowing hands-free talking for the user. If
there is any electrical lock attached to the panel, the porter will be able to release it. In installations with
panel decoders and audiodecoders, the porter can communicate any City panel with any telephone. The
maximum number of City panels in an MDS-Digital installation is 1,000.
Panel decoders can be programmed from a PC, from any MDS-Digital keypad with display or from an
MDS-DIRECT Guard Unit.
PC programming connector
(under the cover)
LED indicator
is ON when the panel is selected
TEST jumpers (activates
the corresponding panel)
Panel output
4 units
It is necessary to add a set formed of a 15 Ohm 1/2W resistor in series with a 1N4002 diode if call
confirmation tone in panel is required. Four sets of these are included with the Panel Decoder.

Pag. 13
Technical Book
MDS
MDS
Video Distributor 4 Ref. 418 & Video Distributor 8 Ref. 419
These devices are used in video installations only. Video distributors are normally placed beside the stan-
dard decoder and they are responsible for distributing the video signal for each monitor. Video distributors
are activated by the decoder they are attached to, whenever a call is generated in that decoder. The de-
coder thus sends a trigger signal through terminal "V", which is used to activate the distributor. As with the
standard decoders, the video distributors are manufactured in two versions or models: REF.2418 for 4
monitor (normally attached to Audiodecoder 4 Ref.2424) & Ref.2419 for 8 monitors (when Audiodecoder 8
is used REF.2425).
The Video distributors do not need to be programmed.
M
MV
-+
M
+
V
-
V
M
-+
V
+-
V
+-
M
DISTRIBUIDOR DE VIDEO 8
VIDEO DISTRIBUTOR 8
DISTRIBUIDOR/DISTRIBUTOR Nº:
BUS
PGM
BUS - V
MADE IN SPAIN
RE . 2419
5
3
MONITOR
1
6
2
78
4
PG
M
BU
S
-
V
M
BUS
V
+-
Decoder PC Interface Module Ref. 466
This module is used for programming the decoders, either before installation, using the PC Programming
Connector included in each of them, or after installation (using any PC Programming Connector in any
decoder connected to the MDS US or even from the PC Programming Connector in the Central Unit).
It can also be used for testing procedures, after installation. See included DECOWIN instructions for
further details.
Rx Tx On
DISTRIBUTOR 4/L
VIDEO
+
VM
+
BUS
V
-+ M
BUS
V
-
-
VIDEO
RE . 2418
-+ V
1
+
M-
23
-
V M +
4
V M -V M
ISODECODER 4
RE . 2426
TELEPHONES
D2
BUS
+ -
D1
2 6 XX
PGM
-V
2
4
31 2 4 6 P
1
3
X+1234
D1
BUS
6
D2
2
-+
P+ X463
+1 2PX6
+
6 PX
4321
Do not forget to set the SW1-2 configuration microswitch in
the Central Unit ( PROGRAMMING DECODER mode) to ON
position, during the programming process, and return it to
OFF positon afterward. See page 14.
75 ohms load resistor
Cut junmper in all the decoder except in the last
one in the riser. See scematic diagrams.
Do not forget the "V" wire between audio decoder
and video distributor.
See figure alongside.
Monitor connector
8 units.
Video BUS
connector

Pag. 14
Technical Book
MDS
MDS
V
M
+
-
SA
CT
6
2
SB
POWER
CO
TDX
D2
D1
-
+
M
V
CT
6
RDX
2
DE
P0
J0
PANEL
ON
+
-
M
1
CT
V
P1
6
2
SB
J1
SA
SWITCHERS
ON
RPX TPX
+-13.8V 2A
+-12V 4A
50-60 Hz. 80VA MAX.
175-270 V E
85-135 V E-
RE.8840
MADE IN SPAIN
PRIM.
RED
ATTENTION
CAUTION
ATENCION
!
BAT
SWITCHERS
50-60 Hz. 80VA MAX.
RE.8840
MADE IN SPAIN
RED
ATTENTION
CAUTION
ATENCION
!
BAT
V
M
+
-
SA
CT
6
2
SB
POWER
TDX
D2
D1
-
+
M
V
CT
6
RDX
2
P0
J0
PANEL
ON
+
-
M
CT
V
P1
6
2
SB
J1
SA
ON
RPXTPX
REF.2420
Central Unit 2 Panels
REF.2421
Central Unit 10 Panels
SB
6
2
SA
CT
+
-
V
M
P1
M
SA
SB
6
2
-
+
CT
V
M
D1 D2
2 6
CT
V
+ -
G
B
G
A
32
SW1
1
ON
A
B
SW1
ON
321
ON
PANEL 1
SWITCHERS
PIN_PADSTACKPIN_PADSTACKPIN_PADSTACKPIN_PADSTACKPIN_PADSTACKPIN_PADSTACK
PANEL 0
INPUT
DECODERS
+-
MDS - BASE MODULE
EXTENSION INTER ACE
SW1-
3
SW1-
3
3
2
1
ON
SW1
3
2
1
ON
SW1
3
2
1
ON
SW1
3
2
1
ON
SW1
3
2
1
ON
SW1
3
2
1
ON
SW1
MDS Digital Central Unit
The Central Unit is the main core of the MDS DIGITAL system. The Outdoor Panels are connected to the
terminals provided for that purpose (see figure below for details).
Choose the model of Central Unit depending on the quantity of Audio/Video panels to install (unit for 2
panels REF.2420 and unit for 10 panels REF.2421).
I
The meaning of LEDs and use of jumpers and microswitches are explained below.
Configuration microswitches (see table below)
J0 (see table on the next page)
J1 (see table on
next page)
J2 (see table on the next page)
PANEL 0
connector
PANEL 1
connector
DECODER BUS
Supply input
Extension soc et
INTERFACE SOCKET
PANEL 0 connector
PANEL 1 connector PANEL 2 to 9 connectors
PANEL 0 connector
PANEL 1 connector
Keypad access code ns ont allowed
(except from guard units) Keypad access code is allowed
PC TEST mode.
PROGRAMMING DECODER mode
Data transmission between Panels
and Decoders is disabled
Normal mode
Digital Controller system Audio or Video standard system

Pag. 15
Technical Book
MDS
MDS
The LEDs in Centr l Unit provide import nt inform tion bout the centr l unit st tus.
Notes
* LEDs X & Y indicate the guard unit mode, meaning how the guard units connected to it are going to work:
activated (not in NIGHT mode but in any other mode, depending on the system configuration) or deactivated
(NIGHT mode).
Note that the information about the function mode of the guard units is stored in the central unit (not in the
guard unit), although it can only be changed by means of a guard unit connected to the central.
* Central units always leave the factory with guard unit deactivated (NIGHT mode in both normal and panic
functions).
* Installations in which the camera is activated from monitors (J2 in "E") re uire an extra common wire (CT).
The t bles below indic tes the use of the jumpers in the MDS Centr l Unit (see note below ).
/(' 0($1,1* 21 2)) %/,1.,1*
;
GUARD UNIT status ACTIVATED DEACTIVATED System is in PC MODE TEST
<
PANIC MODE status ACTIVATED DEACTIVATED not possible
567
RESET system
7KHUHLVDSUREOHP
All is correct
7KHUHLVDSUREOHP
32:(5
MAIN POWER status System is powered
6\VWHPLVQRWSRZHUHG 7KHUHLVDSUREOHPLQSRZHU
VXSSO\
5';
DECODER BUS status
7KHUHLVDEORFNHG'HFRGHU
All Decoders are in standby
mode Some Decoder sends data to Central Unit
7';
DECODER BUS status
&HQWUDO8QLWLQWHUIDFHLV
EORFNHG
Central Unit is not sending
data to Decoders Central Unit sends data to Decoder BUS
3
PANEL 0 status Audio in panel 0 or Guard Unit is
inuse Panel 0 or Guard Unit is not in use. Not possible
3
PANEL 1 status Audio in panel 1
inuse Panel 1 is not inuse Not possible
53;
PANELBUS status
7KHUHLVDEORFNHGSDQHO
All panels are in standby mode Some panel sends data to
Central Unit
73;
PANELBUS status
&HQWUDO8QLWLQWHUIDFHLV
EORFNHG
Central unit is not sending data Central Unit sends data to
panel BUS
ON
I
E
OFF
OFF
ON
- Enables direct audio with3DQHO Normal operation
- Enables direct audio with3DQHO Normal operation
- Cameraactivatedfrom&HQWUDO
8QLW (CTsignal) Camera activated from0RQLWRUV
(CTsignal)

Pag. 16
Technical Book
MDS
MDS
The only difference between Ref.2420 and Ref.2421 is that the Ref.2421 includes an MDS-SWITCHER
MODULE, represented in the figure below, which is connected to the NR-2055 Module by means of a flat
cable, extending the capacity of 2 audio/panels (Ref.2420) up to a maximum of 10.
This MDS-SWITCHER MODULE allocates up to 8 Switcher Cards, which are inserted in the slots (see
figure).
VERY IMPORTANT NOTES:
* The two panels connected to the NR-2055 card do not need Switcher Cards, since the NR-2055 already
includes them, but use one switcher card for each outdoor panel you have to connect into the MDS-
SWITCHER MODULE (Panel connectors 2 to 9) inserting it into the corresponding slot beside the connector.
* Configure the corresponding panel number matching with the panel number connector in which it has
been inserted. Se pages 22 to 25.
* Access control panels can be connected to any panel connector. They can be connected even directly to
any other panel already installed. Do not need switcher card, but it is neccessary to configure its dipswitches
with a panel number not used by any other panel in the same central unit.
* Use Panel 1 connector for the first outdoor panel and reserve Panel 0 connector for the second outdoor
panel (if there is one), Guard Unit or FXL (if the Central Unit is linked to others).
* In FXL installations, Panel 0 is always reserved for the FXL audio communication.
* J1 to ON position directly enables audio between Panel 1 and the decoder bus. Therefore, by inserting a
telephone handset in the test connector of any decoder it is possible to have check audio with the outdoor
panel. This feature is useful when checking or programming the system. The same happens for J0 (with
Panel 0). Whenever these jumpers are set to ON, the corresponding LED (P0 or P1) are on. The LEDs are
also activated when the Central Unit enables the outdoor panel. Do not forget to put J0 or J1 back to its
normal (OFF) position, after checking.
E uivalent LEDs are placed in the Switcher cards to indicate audio activated. The difference is that these
cards do not have activation jumper
* SW1-2 PC TEST MODE has to be put to ON position only when the Decoder PC Intercace Ref. 2466 is
being used, to program decoders or to check the system.
Note that system is then blocked and display shows the message "In Maintenance".
* In case the system is working as Digital Controller, SW1-3 is used to enable the PIN CODE feature. Permission
to open the door is then controlled by means of the PC programming. See PC Programming Manual for
further details.
1. Flat cable from the Central Unit.
2. Panel connector.
3. Power supply connector.
4. Video connector.
5. Switcher extension soc et.
3 4 5 7
6
1
2
8
SWITCHERS BASE MODULE SWITCHER CARD REF.2422
6. Switcher Card (inserted into their slot).
7. Status led indicator. It is on while the
corresponding audio panel is in use
8. Switcher Card soc et.

Pag. 17
Technical Book
MDS
MDS
SB
6
2
SA
CT
+
-
V
M
P1
M
SA
SB
6
2
-
+
CT
V
M
D1 D2
2 6
CT
V
+ -
G
B
G
A
32
SW1
1
ON
A
B
PANEL 1
SWITCHERS
PIN_PADSTACKPIN_PADSTACKPIN_PADSTACKPIN_PADSTACKPIN_PADSTACKPIN_PADSTACK
PANEL 0
INPUT
DECODERS
+-
MDS - BASE MODULE
EXTENSION INTER ACE
FXL Netw rk card ref. 2428
The way to connect several MDS-DIGITAL Central Units is by means of the FLX network (FERMAX LINK).
It is possible to link up to 64 Central Units. When the Central Units are linked, the maximum number of
Outdoor Panels per Central Unit will be 31, since the FXL CARD uses the PANEL 0 position. Each card
includes a set of microswitches to configure the following data (see switches table on next page)
Notes:
* If the system has only two linked Central Unit cut both J1 and J2 only in the module installed into the first
Central Unit. This is to share the "pull up" and "pull down" resistances.
* If the system has more than two Central Units, cut both J1 and J2 in all the modules, except in one of them
installed in the middle of the system. This is to avoid excessive "pull up" and "pull down" resistances.
FXL card inserted
in its connector
Configuration switches
Jumper "J2". See note
Jumper "J1" See note
"Rx" LED. It blin s while
this module is receiving data from
the FXL.
"Tx" LED. It blin s
while module is sending data to
the FXL.
MDS P wer Supplies
The following power supplies are suitable for MDS systems:
Note
* The number of decoder that can be supplied by the same power source depends on the wire section used
and the distance between them, as long distances and thin wires increase the resistance.
See page 9 for the dependence between the distance and the maximum number of decoders that can be
supplied with the same power supply.
For the same reason, the number of monitors that can be supplied depends on the section and wire length.
60 monitors are estimated using the ref. 5919 FERMAX wire, and up to 300m. from the Power Supply up
to the last monitor.
* Using one emergency battery (Ref. 2070 or 2337)connected to each ref. 8840 Power Supply, the audio
system (not video) can work in the event of power failure. Autonomy is estimated at 40 minutes, but
depends on the use. Ref. 8837 Power Supply already includes an internal built-in battery.
REF.
)($785(6$1''(6&5,37,21
USAGE
0'6',*,7$/ 0'6&,7<25',5(&7 0'6',*,7$/&20%,1('
:,7+0'6&,7<',5(&7
8840 4 A, 12 Vdc
General Power Supply
One power supply for :
* one central unit
* up to 6 MDS digital panels
* up to 120 decoders. See note below.
To recuperate the droping voltage along the
bus decoder (see page 9).
One power supply for :
* one central unit
* up to 6 MDS digital panles
* up to 120 decoders. See note below.
To recuperate the droping voltage along
the bus decoder (see page 9).
8830 4 A, 18 Vdc
Video Power Supply One power supplyevery 60 monitors . See note below. One power supplyevery 60 monitors. See note below. One power supply every 60 monitors. See note below.
8837 0,75 A, 12 Vdc (with build-in battery)
Auxiliary Power Supply
To recuperate the droping voltage along the
bus decoder (see page 9)
One power supply for everyMDS
DIRECT/CITYpanel and up to 40
decoders. See note below.
One power supply for:
* one MDS DIRECT/CITYpanel
* up to 40 decoders. See note below.
To recuperate the droping voltage along
the bus decoder (see page 9).

Pag. 18
Technical Book
MDS
MDS
FXL CONFIGURATION SWITCHERS. CENTRAL UNIT NUMBER
Examples:
* There is a condominium formed by 3 blocks, with apartments numbered from 101 to 150 in the first block,
from 201 to 250 in the second and from 301 to 350 in the third block.
We can use short call in this case, because there are no repeated apartment numbers. To call apartment
307 (in block 2) we will dial 3-0-7 either from the general entrance or from the block entrance.
* There is a condominium formed by 5 blocks. All of them have the apartments numbered from 1 to 150.
We have to use long call, because there are repeated apartment numbers in the blocks. To call apartment
25 in the 3º block, we will dial 3-0-0-2-5 if the call is made from the general entrance, and 2-5 only if the
call is made from the block entrance.
The microswitch "7" set to "OFF" (long call) indicates that it will first be necessary to dial the block number
in order to call the telephones (one or two digits) followed by the telephone number (four digits), when the
call is made from the general entrances. If the call is made from the corresponding block entrance only the
digits corresponding to the telephone number are required.
In the "ON" position (short call) it will not be necessary to enter the block number, but only the telephone
number, whether the call is made from the general entrance or from the block entrance.
Long call is necessary in places where the apartment numbers are repeated in two or more blocks, in order
to identify the block, when the call is made from the general entrance. Otherwise, short call is suitable.
The microswitch "8" set to "OFF" indicates that the panels installed in the central unit will be considered as
general entrances to a condominium (it enables calls to telephones controlled by other central units), while
in the "ON" position indicates that it is a central unit installed to manage a specific block.
Note: this treatment is different if we use the multistairs system provided by the MDS Version 3.1 or higher
(see page 25).
In Digital Controller Systems (SW1-3 in the central unit set to OFF) put microswitches 7 & 8 in the FXL card
to OFF to set the DC Extended Mode. It is then possible to link up to 64 central units which allows us to
manage up to 65.408 users). The total of accesses is limited to 31, as they are shared in all the central
units and access 0 is used (PANEL1) for the FXL network.
ON
ON
ON
ON
ON ON ON ON ON ON ON ON
ON ON ON ON ON ON ON ON
ON ON ON ON ON ON ON ON
ON ON ON ON ON ON ON ON
ON ON ON ON ON ON ON ON
ON ON ON ON ON ON ON
ON ON ON ON ON ON
ON ON ON ON ON ON ON
ON
01 2 3 45 67
891011
12 13 14 15
16 17 18 19 20 21 22 23
24 25 26 27 28 29 30 31
32 33 34 35 36 37 38 39
40 41 42 43 44 45 46 47
48 49 50 51 52 53 54 55
56 57 58 59 60 61 62 63
512 3 4 768
512 3 4 768
512 3 4 768
512 3 4 768
512 3 4 768 512 3 4 768 512 3 4 768 512 3 4 768 512 3 4 768 512 3 4 768 512 3 4 768 512 3 4 768
512 3 4 768 512 3 4 768 512 3 4 768 512 3 4 768 512 3 4 768 512 3 4 768 512 3 4 768 512 3 4 768
512 3 4 768 512 3 4 768 512 3 4 768 512 3 4 768 512 3 4 768 512 3 4 768 512 3 4 768 512 3 4 768
512 3 4 768 512 3 4 768 512 3 4 768 512 3 4 768 512 3 4 768 512 3 4 768 512 3 4 768 512 3 4 768
512 3 4 768 512 3 4 768 512 3 4 768 512 3 4 768 512 3 4 768 512 3 4 768 512 3 4 768 512 3 4 768
512 3 4 768 512 3 4 768 512 3 4 768 512 3 4 768 512 3 4 768 512 3 4 768 512 3 4 768
512 3 4 768 512 3 4 768 512 3 4 768 512 3 4 768 512 3 4 768 512 3 4 768
512 3 4 768 512 3 4 768 512 3 4 768 512 3 4 768 512 3 4 768 512 3 4 768 512 3 4 768

Pag. 19
Technical Book
MDS
MDS
PC Interface Pr gramming Card Ref. 2427
The MDS-Digital system parameters can be configured via PC, giving the possibility of programming the
system before installing it with all the advantages this provides: installations management (by files), user
lists... FERMAX has developed special software to manage and program the MDS-Digital systems: the
WINCO . See the asic and PC MDS Programming Manuals for further details.
y means of this card, it is also possible to change the language of the messages shown in the MDS-
Digital panel display.
MAX. 3m LENGTH
PIN Nº: PIN Nº:
7
3
22
3
5
MAX. 3m LENGTH
PIN Nº: PIN Nº:
5
3
22
3
5
The cable required to link the PC with the PC Interface Card in Central Unit is not supplied by FERMAX.
You can easily make your own cable depending on the serial connector you want to use (D 9 or D 25).
FXL Central Pr gramming M dule Ref. 2338
PC card inserted in its
connector
RX led.
Central Unit receiving data from PC
TX led.
Central Unit sending data to PC
PC cable for XL
MANAGEMENT
Ref.5918Ref.5918
MDS CENTRAL UNIT
WITH XL INTER ACE CARD MDS CENTRAL UNIT WITH XL INTER ACE CARD
STANDARD CITYMAX
TELEPHONE RE .8044
220 Vac220 Vac
12V
+--+
RE . 8840
POWER SUPPLY
ALIMENTADOR
PRIM.
E
+- BAT.13.8V
A
B
G
A
B
G
NR-2067
NR-2055
DECODERS
PANEL 1 PANEL 0
12
-++-
DD26CtVM
Ct
M
V
+
-
2
6
SA
SB
6
2
SB
SA
-
+
M
V
CtCt
V
M
+
-
SA
SB
2
6
SB
SA
6
2
-
+
V
M
Ct
MVCt 6 2 DD -+ +-
21
PANEL 0PANEL 1
DECODERS
NR-2055
NR-2067
G
B
A
G
B
A
BAT.13.8V
-+
E
PRIM.
ALIMENTADOR
POWER SUPPLY
RE . 8840
+- -+12V
-A
PRIM.
GESTION XL
XL MANAGEMENT
RE . 2338
B 2 662BA
-
12 3 4 6
220 Vac
Ref.5922
NR-2086
21 3 54 6
WINCOM
Tx
Rx
Pwr
2427 Card sidePC side
DB-9
2427 Card sidePC side
DB-25
There is another choice for PC programming in MDS-Digital systems which is strongly recommended for
installations with several Central Units. In that particular case, it may be interesting to use a device that
allows the programmer to access every Central Unit from a common point, without it being necessary to
unplug the FXL card (as with the PC Interface Module above).

Pag. 20
Technical Book
MDS
MDS
The link cable required is shown below. This cable is not included with the module.
6
5
4
3
2
1
7
8
9
PIN Nº: PIN Nº:
9
8
7
1
2
3
4
5
6
BROWN
RED
ORANGE
YELLOW
GREEN
MAX. 3m LENGTH
The figure shown on the previous page illustrates how to connect the FXL Programming Module Ref.2338
in a typical installation with 2 Central Units. For installations with more Central Units, the device may be
connected at any point between them (there is no restriction regarding the central units it is connected
between).
This device allows us to use a ASIC CITYMAX TELEPHONE REF.8044 for communication with any
outdoor panel or guard unit (see figure).
Rem te Pr gramming M dule Ref. 2467
TELEPHONE LINE Shielded twisted pair
Shielded twisted pair
M.D.S. CENTRAL UNIT
Ref.2420
220 Vac
12V+ --+
RE . 8840
POWER SUPPLY
ALIMENTADOR
PRIM.
E
+ - BAT.13.8V
A
B
G
A
B
G
NR-2067
NR-2055
DECODERS
PANEL 1 PANEL 0
12 -++-DD26CtVM
Ct
M
V
+
-
2
6
SA
SB
6
2
SB
SA
-
+
M
V
Ct
GESTION XL-MODEM
MODEM XL ACCESS
RE . 2467
RS-232 GBA
ABG
9-12 Vdc
TERMINAL
+-C G
MODEM
XL net
2338 Module side
PC side
It is also possible to connect to a MDS system remotely, via modem. Then all the same features are
available as with local connection. For this, a PC with the Wincom software connected to the telephone
line via Modem is required. The link cable between the PC and the modem is represented on the next page.
On the MDS side are required:
* Ref. 2467 Modem FXL Access Terminal
* Ref. 2428 FXL Network Card to connect the Ref. 2467 to a single MDS central Unit or to a FXL network.
* A 56K U.S. Robotics Modem to connect the Ref. 2467 to the telephone line.
* A link cable to connect the Ref. 2467 module to the modem (See next page). This cable is not included
with the module.
Use the MDS Wincom software from the remote PC to connect and program the MDS System, as if it were
connected directly to them. See instructions included with the Ref. 2427 PC Card for further details.