golmar Gtwin Series User guide

SYSTEM MANUAL
Code 5012 3452 TGTWIN SYSTEM MANUAL EN REV.0219
GTWIN 2-wire
installation
system manual
LINE IN LINE OUT
LINE
321 4 IN1
Power supply
FA-Gtwin
Power supply
FA-Gtwin
MC-Gtwin
column
LINE OUT
LINE IN
Building 1
multiplexer
IN0
Following buildings

GTWIN SYSTEM MANUAL 2
CONTENTS
GENERAL CHARACTERISTICS AND STANDARDS........................................................................... 3-4
TYPES OF SYSTEM............................................................................................................................ 4-8
SYSTEM OPERATION............................................................................................................................ 9
C .............................................................................................................ontrol of calls and busy state 9
Door panel functions....................................................................................................................... 9-10
Monitor/telephone functions........................................................................................................... 11-12
SYSTEM INSTALLATION....................................................................................................................... 13
Safety precautions.............................................................................................................................. 13
Minimum and maximum number of devices.................................................................................. 13-14
System power supply.................................................................................................................... 15-16
T .........................................................................................................................ypes of usable cable 16
Distances and maximum sums...................................................................................................... 17-27
Connection of the main lock release.................................................................................................. 28
Connection of the secondary lock release......................................................................................... 28
Connection of the auxiliary signals of the door panel........................................................................ 28
Connection of the signals of the monitors/telephones....................................................................... 28
Wiring and end of line................................................................................................................... 28-29
ACTIVATION OF THE SYSTEM............................................................................................................ 30
1 C ...............................................................................................onfiguration of the ends of line (z) 30
2 C ......................................................................................................onfiguration of the devices 30-35
3 ...................................................................................Turning on and checking the supply voltage 36
4 .............................................................................................................................System check 36-37
5 ....................................................................Association of door panel buttons with apartments 37-39
6 .....................................................................................................................Basic functional check 39
7 ...........................................................................Optional programming for additional functions 40-43
TECHNICAL CHARACTERISTICS OF THE DEVICES......................................................................... 44
NOTES RELATED TO THE WIRING DIAGRAMS............................................................................ 44-45
WIRING DIAGRAMS......................................................................................................................... 46-51
OPTIONAL CONNECTIONS............................................................................................................. 52-53
EL569 IN/OUT UNIT................................................................................................................................54
E 566 IN/OUT UNITL ................................................................................................................................55
COMPLIANCE........................................................................................................................................ 56

3GTWIN SYSTEM MANUAL
Gtwin video door entry system with simplified wiring (non-polarised 2-wire bus).
Its modular structure enables the forming of small systems of 1 or 2 apartments and also large systems of
different types and dimensions: dwe audio, video or mixed, offering suitable solutions to all requirements.
GENERAL CHARACTERISTICS AND TYPES OF SYSTEM
With the Gtwin system, it is possible to form video door entry installations of up to 127 users per MC-Gtwin
multiplexer, with a maximum of 32 MC-Gtwin multiplexers, each with a maximum of 2 secondary panels
(interior) and up to 4 main panels (general) and a guard unit.
.
The characteristics of the Gtwin video door entry system are the following:
.
System
.
- Up to 4 main door panels (general).
- Up to 32 MC-Gtwin multiplexers, each with a maximum of 2 secondary panels (interior).
- Up to 127 monitors/telephones and apartments per column/riser (building) with a single power supply.
- Up to 127 monitors/telephones and apartments per MC-Gtwin multiplexer with a single power supply.
- Up to 4 monitors/telephones in parallel per apartment.
- Possibility of connecting a guard unit with traditional functions in the system: day/night function,
memorisation of missed calls, etc.
- Non-polarised 2-wire bus.
- No local power supply needed in access panels or monitors/telephones.
- Bypass wiring through a D4L-Gtwin distributor with 4 outputs (users) or IN/OUT directly on the terminals of
the monitors/telephones.
- Protection against short circuits in the bypass (D4L-Gtwin distributor).
- Programming: simplified, with DIP switches for monitors/telephones and button panels.
- Activation of the electric lock from all monitors/telephones, with activation time and mode (free/with secret)
programmable.
-Activation by relay of a second lock release (on door panel) from all monitors/telephones.
- Indication of open entrance door by means of an LED on the monitors/telephones.
.
Access panels
.
- These can be door panel with pushbuttons or coded panels.
- Colour camera.
- Entrance door sensor (indicating open door on monitors/telephones).
.
Monitors/telephones
.
- Colour monitor with Tekna Gtwin 3.5” handset.
- Colour monitor with Tekna Gtwin 4.3” handset.S
- Hands-free Tekna HF Gtwin 4.3” colour monitor.
- T-5924 telephone.
- Different ringtones to identify call origin (selectable from 5 possible melodies).
- Different ringtones to identify call origin: main panel, secondary panel, intercom, guard unit and interior door
of the apartment.
- Call to guard unit.
- Programmable intercom call to a monitor or telephone in the same vertical or apartment.
- Input for calls from the interior door of the apartment.
- Auxiliary call repeater output for the repetition of all calls, an additional self-powered call repeater or a call
repeater relay.
- Display of the opening state of the entrance door.
.
Standards
.
- IMQ and VDE certified system power supply.
-All devices comply with CE electromagnetic compatibility and low-voltage standards.
- The system is intrinsically protected against static electromagnetic interference and impulses.

Building with 1 main access and 1 column (without multiplexer)
FA-Gtwin
power supply
LINE OUT
LINE IN
LINE 1
LINE 2
Access panel (main)
SW1 (ID) = 0
GTWIN SYSTEM MANUAL 4
TYPES OF SYSTEM
Building with 2 main accesses or 1 main and 1 secondary, maximum 4 columns (1 MC-Gtwin column
multiplexer)
MC-Gtwin
column multiplexer
ID = n
LINE
IN1
IN0
321 4
LINE OUT
LINE IN
or
Secondary panel
SW1 ( )ID = n
SW2 ( )AUX dip 2 = ON
Door panel (main)
SW1 (ID) = 0
Door panel (main)
SW1 (ID) = 0
Door panel (main)
SW1 (ID) = 1
SW2 (AUX) dip 1 = ON
SW2 ( )AUX dip 1 = OFF
FA-Gtwin
power supply

Building with 4 main accesses and maximum 4 columns (1 DPM-Gtwin panel multiplexer)
DPM-Gtwin panel multiplexer
LINE
321 4
IN2IN1IN0 IN3
LINE OUT
LINE IN
5GTWIN SYSTEM MANUAL
Access panels (main)
SW1 ( ) = 1ID SW1 ( ) = 2ID SW1 ( ) = 3IDSW1 (ID) = 0
FA-Gtwin
power supply
FA-Gtwin
power supply

1 main general access and 1 secondary access in each building, maximum 64 columns, 16 buildings
MC-Gtwin
column
SW1 (ID) = n
General panel (main)
SW1 (ID) = 0
FA-Gtwin
power supply
Secondary panel
SW1 (ID) = n
SW2 ( )AUX dip 2 = 0
Secondary panel
SW1 ( )ID = n+1
SW2 ( )AUX dip 2 = 0
LINE
321 4
LINE OUT
LINE IN
LINE IN
IN0
LINE OUT
LINE
321 4
LINE OUT
LINE IN
LINE IN
IN0
LINE OUT
GTWIN SYSTEM MANUAL 6
multiplexer
SW1 ( )ID = n+1
Building (n) Building (n+1)
(16 MC-Gtwin multiplexers)
MC-Gtwin
column
multiplexer
FA-Gtwin
power supply
FA-Gtwin
power supply

4 general accesses as main and 1 or 2 secondary accesses in each building, maximum 128 columns,
32 buildings (32 MC-Gtwin multiplexers)
7GTWIN SYSTEM MANUAL
Multiplexor
de columna
MC-Gtwin
Secondary panel
SW1 ( )ID = n+2
SW2 ( )AUX dip 2= 1
Secondary panel
SW1 (ID) = n
SW2 ( )AUX dip 2 = 0
Secondary panel
SW1 ( )ID = n+1
SW2 ( )AUX dip 2 = 0
Secondary panel
SW1 ( )ID = n+2
SW2 ( )AUX dip 2= 0
LINE
321 4
LINE
321
IN0 IN1 IN2 IN3
4
LINE OUT
LINE IN
LINE IN
IN0
LINE OUT
LINE
321 4
LINE OUT
LINE IN
LINE IN
IN0
LINE OUT
LINE
321 4
LINE OUT
LINE IN
LINE IN
IN1
IN0
LINE OUT
General panels (main)
SW1 ( ) = 1ID SW1 ( ) = 2ID SW1 ( ) = 3IDSW1 (ID) = 0
SW1 (ID) = n SW1 ( )ID = n+1 SW1 (ID) =
n+2
Building (n) Building (n+1) Building (n+2)
FA-Gtwin
power supply
FA-Gtwin
power supply FA-Gtwin
power supply
FA-Gtwin
power supply
FA-Gtwin
power supply
DPM-Gtwin
panel multiplexer
MC-Gtwin
column
multiplexer
MC-Gtwin
column
multiplexer

Guard unit
GTWIN SYSTEM MANUAL 8
LINE
321 4
LINE
321
IN0 IN1 IN2 IN3
4
LINE OUT
LINE IN
LINE IN
IN0
LINE OUT
LINE
321 4
LINE OUT
LINE IN
LINE IN
IN0
LINE OUT
LINE
321 4
LINE OUT
LINE IN
LINE IN
IN1
IN0
LINE OUT
1 2
ABC DEF
MNOJKLGHI
WXYZTUV
F1 F3F2
F4 F6F5
SHIFT
PQRS
3
4 5 6
7 8
0
9
4 general accesses as main, 1 or 2 secondary accesses in each building and a guard unit, maximum
128 columns, 32 buildings (32 MC-Gtwin multiplexers)
MC-Gtwin
column
multiplexer
DPM-Gtwin panel
multiplexer
Secondary panel
SW1 ( )ID = n+2
SW2 ( )AUX dip2= 1
Secondary panel
SW1 (ID) = n
SW2 ( )AUX dip 2 = 0
Secondary panel
SW1 ( )ID = n+1
SW2 ( )AUX dip 2 = 0
Secondary panel
SW1 ( )ID = n+2
SW2 ( )AUX dip2= 0
General panels (main)
SW1 ( ) = 1ID SW1 ( ) = 2ID SW1 ( ) = 3IDSW1 (ID) = 0
SW1 (ID) = n SW1 ( )ID = n+1 SW1 (ID) =
n+2
Building (n) Building (n+1) Building (n+2)
FA-Gtwin
power supply
FA-Gtwin
power supply FA-Gtwin
power supply
FA-Gtwin
power supply
FA-Gtwin
power supply
MC-Gtwin
column
multiplexer
MC-Gtwin
column
multiplexer
FA-Gtwin
power supply

§
9GTWIN SYSTEM MANUAL
SYSTEM OPERATION
CONTROL OF CALLS AND BUSY CHANNEL
The Gtwin system enables several simultaneous conversations to take place in the different interior
buildings, in addition to another conversation between a main general panel and a monitor/telephone in an
interior building that is not in a busy channel.
.
The behaviour of the system after a call is the following:
.
- A call from a general panel places the other general panels and the building of the monitor/telephone called
in a busy channel during response waiting time (max. 60 seconds). During the wait for a response, the
system (general and secondary panels of the building called) is in a busy channel state. When the user
responds and enters into conversation, the busy state is extended for the guaranteed talk time: this time
can be set during installation and ranges from 1 to 70 seconds. When the guaranteed conversation time
elapses, another call can interrupt the conversation. The maximum conversation time is 10 minutes. At the
end of the conversation, as a result of the user hanging up or the waiting time being fulfilled, the system
returns to the standby state.
.
- A call from a secondary panel behaves in the same way, but only occupies the channel of that building, even
if there is a second secondary access panel, but not door panels of other buildings, whether general or
secondary. At the end of the conversation, as a result of the user hanging up or the waiting time being
fulfilled, the system returns to the standby state.
.
- The display image function of the door panels/cameras in the monitor places all of the main panels and the
entire channel of the interior building in a busy state during the response waiting time (max. 60 seconds),
but not the secondary panels corresponding to the other buildings. If the monitor establishes
communication (when the handset is picked up or the corresponding button is pressed on hands-free
monitors), the busy channel state can be prolonged, lasting for a time equivalent to the guaranteed
conversation time (which is set during installation and ranges from 1 to 70 seconds). During busy channel
time, no system monitor can perform the display image function. At the end of the conversation, as a result
of the user hanging up or the waiting time being fulfilled, the system returns to the standby state.
.
- An intercom call places all of the monitors/telephones and secondary panels of the building in a busy state
during the response waiting time (max. 60 seconds). When the user answers, the busy channel state can
be prolonged for a guaranteed conversation time (which is set during installation and ranges from 1 to 70
seconds). During the busy time generated by an intercom call, door panel calls may or may not interrupt the
intercom call and the intercom communication process, as programmed on the door panel (interruption
parameter).
The maximum conversation time is 10 minutes.
At the end of the conversation, as a result of the user hanging up or the waiting time being fulfilled, the
system returns to the standby state.
.
- A call to the apartment from the interior door of the apartment does not influence the busy state of the
system.
.
DOOR PANEL FUNCTIONS
.
For the particular features of each door panel, refer to the corresponding instruction manual.
.
MAKING A CALL
.
When a door panel call is made to an apartment, the following situations may occur, depending on the state of
the door panel and the column/riser of the building called:
.
- Door panel with free channel: the door panel emits a ringtone (1 beep).
.
- Door panel with busy channel: the door panel emits a busy channel tone (3 beeps in a row) and LED of the
door panel blinks for 3 seconds.At the end of the busy channel, it is necessary to make the call again.

GTWIN SYSTEM MANUAL 10
CONTROL OF MAIN DOOR OPENING
The door panel's terminals (SE-, SE+) enable the connection of a 12V DC electric lock (Golmar), without
the need for an additional power supply.
.
Activation of the electric lock:
.
- Each time the entrance hall button is activated (PA terminals).
.
- When the command to open the door of a monitor/telephone is received, according to the configuration of
the 'free' or 'with secret' operating mode:
.
'With secret': the activation of the door release button of a monitor/telephone can activate the electric
lock of the door panel only if it is in a call, communication or auto switch-on process.
.
'Free': the activation of the door release button of a monitor/telephone can activate the electric lock of
the door panel (without the need for a call, communication or auto switch-on process) if the
monitor/telephone of the apartment is in the same building (channel) as the door panel.
CONTROL OF SECONDARY DOOR OPENING
.
The SE2 terminals (relay C and NO contacts) of the door panel enable the connection of a 12V AC (máx.
1A) electric lock (Golmar), without the need for an additional TF-104 power supply. When the command to
open a secondary door is received from a monitor/telephone by pressing button , the relay is activated
for 1 second (not configurable), according to the configuration of the 'free' or 'with secret' operating mode,
as in the control of main door opening (see the 'Control of main door opening' section).
CONTROL OF THE DOOR SENSOR FOR THE 'OPEN DOOR' FUNCTION
.
The SP terminals of the door panel are an input for the control of an NC open door sensor. The
monitors/telephones have a status LED (two-colour). The red LED will indicate the status of the door of the
last panel that called the apartment and from which the door opening button was activated. In the case of an
open door on the main panel, the LED is illuminated red and, in the case of an open door on a secondary
panel, it is intermittent.

MONITOR/TELEPHONE FUNCTIONS
Call origin Time Total bell duration
Call from main panel 3 seconds ON 3 seconds
Call from secondary panel 0.4 seconds ON 0.2 seconds
OFF 5 times 2.8 seconds
Call from guard unit 0.1 seconds ON 0.05 seconds
OFF 3 times pause 0.2 seconds
repeated 5 times
2.8 seconds
Intercom call 0.5 seconds ON 0.5 seconds
OFF 3 times 2. seconds5
Doorbell call apartment front door 3 seconds ON 3 seconds
§
11 GTWIN SYSTEM MANUAL
For the particular features of the monitor/telephone, see the corresponding manual.
RECEIVING CALLS
.
When a call is received in the apartment, the monitor/telephone rings with the melody set (one of 5 options) with
these intervals:
A call from the doorbell of the apartment (CP terminals of the monitor to connect a front door bell) is the same
as a call from the main panel as far as the duration is concerned, but uses a different melody:
From the moment a call from the video door entry or electronic door entry is received, it is possible to control
the activation of the lock release without establishing communication.
If the apartment has several monitors/telephones in parallel, these sound in succession.
The main monitor displays the door panel image when receiving a call from the video door entry system.
During the call time (60 seconds) and before establishing communication, a slave monitor can capture the
door panel image if button is pressed, causing the image on the monitor that was displaying it to disappear.
After hanging up, the image will only be present on the monitor that established communication.
SHOW DOOR PANEL/CAMERA IMAGE FUNCTION
With the monitor in standby, it is possible to show the image of the main panel with ID equal to 0 by pressing
button of the monitor. As button is pressed, the image of the following main panels will be displayed,
followed by the images of the secondary panels and finally the connected cameras (up to 4 cameras) in the
D4CAM-Gtwin module installed in the same building as the monitor. At the end, the cycle starts again from the
main position 0.
If the handset is picked up or the start/end communication button is pressed (in the case of hands-free
monitors), the user enters into audio and video communication with the currently selected door panel. While in
communication with the door panel, the user can open the door by pressing the door release button at any
time.
If the user does not establish communication, the show door panel image function concludes automatically 60
seconds after the beginning of this function.
CALL TO THE GUARD UNIT
To make a call to the guard unit with the monitor/phone in standby, pick up the handset or press the start/end
communication button (in the case of a hands-free monitor) and then press the button.
INTERCOM CALL
After programming a button of a monitor/telephone for the intercom function (see the programming section),
pick up the handset or press the start/end communication button (in the case of a hands-free monitor) and then
press the intercom call button.
The following situations may occur depending on the state of the building's channel:
Free channel (monitor/telephone not busy): The monitor/telephone that makes the call emits a confirmation
tone (1 beep) and, on the monitor/telephone of the apartment called, a melody will indicate the presence of
an intercom call. Pick up the handset or press the start/end communication button.

GTWIN SYSTEM MANUAL 12
Busy channel (monitor/telephone busy): The monitor/telephone that makes the call emits 4 fast tones
(4 beeps) indicating that the unit called is busy. Hang up and try later.
CALL FROM THE INTERIOR DOOR OF THE APARTMENT FUNCTION
The monitor/telephone has a terminal input (CP) for the connection of a call button (doorbell) of the interior
door of the apartment. When the button (bell) is pressed, the monitor/telephone emits a 3-second tone with the
melody set (different to the melody of the other calls). If the user has several monitors/telephones in parallel,
only connect this button to one unit. The other units will sound in succession.
OUTPUT TO AUXILIARY CALL REPEATER
The monitor/telephone has a terminal output (S+, S-) for the connection of an auxiliary call repeater or call
repeater relay (Gtwin). This output is activated simultaneously with any call received on the
monitor/telephone.
OPEN DOOR FUNCTION
If a door sensor (contact) is connected to the terminals (SP) of the door panels, the monitor/telephone can
control the open and closed status of the doors. If the door of a main panel is open, the LED is illuminated red; if
the door of a secondary panel is open, the LED blinks.
The function is only active on the last monitor/telephone called where the door opening button was activated
and corresponding to the last panel that made the call.

SAFETY PRECAUTIONS
MINIMUM AND MAXIMUM NUMBER OF DEVICES
Device Maximum number
D4L-GTWIN 4-user distributor 32 x 32 columns
FA-GTWIN power supply 34
MC-GTWIN column multiplexer 32
DPM-GTWIN panel multiplexer 1
Panels Maximum number
Main audio and video door entry panel 4
Secondary audio and video door entry panel 64
Total number of panels in the system 68
Monitors/telephones Maximum number
Number of users (apartments) per MC-GTWIN column multiplexer 1 72
Number of monitors/telephones in parallel (in the same apartment) 4
Total number of monitors/telephones per column/riser
(counting the monitors/telephones in parallel) 1 72
Total number of monitors/telephones in input/output connection per (*)
column/riser (counting the monitors/telephones in parallel). 32
•
§
13 GTWIN SYSTEM MANUAL
SYSTEM INSTALLATION
Always disconnect the power supply before installing or making modifications to the devices..
The fitting and handling of these devices must be carried out by authorised personnel.
.
All wiring must run at least 40 cm away from any other wiring.
.
On the power supply unit:
.
- Do not overtighten the screws on the connector.
-Install the power supply unit in a dry protected location free from the risk of dripping or splashing water.
-Avoid locations that are humid, dusty or near heat sources.
-Ensure that the air vents are free from obstruction so that air can circulate freely.
- o avoid damage, the power supply unit must be firmly secured in place.T
-To prevent electric shock, do not remove the cover or handle the wires connected to the terminals.
.
On the monitor, telephones and distributors:
-Do not overtighten the screws on the connector.
-Install the devices in a dry protected location free from the risk of dripping or splashing water.
-Do not place in humid, dusty or smoky locations, or near sources of heat.
-Ensure that the air vents are free from obstruction so that air can circulate freely.
Note that the installation and handling of these devices must be performed by authorised personnel and in
the absence of electrical current.
.
Always follow the instructions contained in this manual.
Number of users (apartments) per column/riser 1 72
.
The minimum configuration of a Gtwin system includes the following: an FA-GTWIN power supply, a door
panel and at least one monitor/telephone.
The maximum number of devices and users is as follows:
(*) If the configuration is mixed (monitors/telephones + distributors connected in input/output in the
column/riser), the maximum number of devices is 16. Monitors/telephones connected in bypass from the
distributor are not counted.
If the column/riser exclusively has telephones, the maximum number of telephones is 127, even in the
case of input/output connection in the column/riser.

1
2
32 Maximum 127 monitors/
telephones per column/riser
Maximum 4 monitors/telephones
connected in input/output mode
32
2
1
Maximum 32 monitors/telephones
per columnnitores
Maximum 32 distributors
per column/riser
2
1
3
16
Maximum 16 monitors/telephones
per column/riser
GTWIN SYSTEM MANUAL 14
Maximum 4 monitors/telephones
connected in input/output mode

SYSTEM POWER SUPPLY
LINE
321 4 IN1
IN0
LINE OUT
LINE IN
FA-Gtwin power
supply
LINE IN LINE OUT
LINE
321 4 IN1
LINE IN LINE OUT
LINE
321 4 IN1
IN0
MC-Gtwin
column
multiplexer
15 GTWIN SYSTEM MANUAL
LINE OUT
LINE IN
LINE OUT
LINE IN
Maximum 127 monitors/telephones
per column/riser
IN0
To calculate the number of power supplies required for the system, the following should be considered:
System with a column/riser with 1 or 2 access panels with 122 buttons (apartments) each, up to 127
monitors/telephones, 1 column multiplexer: 1 FA-Gtwin power supply.
Note: In the case of more than 122 apartments, a coded panel is necessary.
System with 32 columns/risers (32 column multiplexers): add 1 FA-Gtwin power supply for each MC-Gtwin
column multiplexer.
System with more than one main panel and panel multiplexer: add 1 FA-Gtwin power supply.
Maximum 127 monitors/telephones
per column/riser
Maximum 127 monitors/telephones
per column/riser
FA-Gtwin
power supply
FA-Gtwin
power supply
FA-Gtwin
power supply
MC-Gtwin
column
multiplexer
MC-Gtwin column
multiplexer

DPM-Gtwin
panel multiplexer
LINE IN LINE OUT
LINE
321 4 IN0
IN1
IN1 IN3IN2IN0
LINE IN LINE OUT
LINE
321 4 IN0
IN1
FA-Gtwin
power supply
MC-Gtwin
column
multiplexer
TYPES OF USABLE CABLE
§
GTWIN SYSTEM MANUAL 16
LINE OUT
LINE IN
LINE OUT
LINE IN
The bus is NOT polarised. The Golmar RAP-GTWIN cable has been specially designed to ensure the
system's maximum distance and extension. The twisting of the cable also ensures good immunity from
interference.
For information about maximum distances and types of system achievable with the different kinds of
cable, see the following paragraphs.
ATTENTION!: Installation with multipair cables in order to join conductors and increase the cross-
section of the cable IS ABSOLUTELY PROHIBITED.
Maximum 127 monitors/telephones
per column/riser
Maximum 127 monitors/telephones
per column/riser
FA-Gtwin
power supply
FA-Gtwin
power supply
FA-Gtwin
power supply
MC-Gtwin
column
multiplexer

CONNECTION OF COLUMNS/RISERS WITH TELEPHONES ONLY
The instructions described below are valid only for fully audio systems.
Connection of a column/riser with telephones only (audio system) in star connection
maximum 127 telephones
per column/riser
Bc
A
A = distance between the star connection and telephone.
Bc = distance between the device where the column/riser is connected.
Compatibility of cables and cross-sections No.
of users
Distance
A Bc A+Bc
RAP-GTWIN cable (for new installations) 1 72 50m 600m 600m
Telephone cable Ø 0.6 mm without cover 64 50m 300m 300m
CAT5 UTP (twisted pair) 64 50m 200m 200m
HVV05-F cable hose 1.5 mm21 72 50m 300m 300m
Cable cross-section 1 mm232 50m 300m 300m
Connection of a column/riser with telephones only (audio system) in input/output mode
12
2
1
Bc
maximum 127 telephones
per column/riser
§
§
17 GTWIN SYSTEM MANUAL
DISTANCES AND MAXIMUM SUMS
This chapter describes the different modes of connection of a column/riser with telephones only, regardless of
whether the column or riser is connected to a FA-Gtwin power supply, MC-Gtwin column multiplexer or DPM-
Gtwin panel multiplexer.
For information about the maximum length of all of the Bus wiring in the installation (sum) and
connection of the door panel(s), see the following paragraphs.

Bc = y el más leja oteléfono a d .distancia entre el dispositivo desde donde está conectada la columna / troncal
Compatibility of cables and cross-sections
No.
of users
distance
Bc
RAP-GTWIN cable (for new installations) 1 72 600m
Telephone cable Ø 0.6 mm without cover 64 300m
CAT5 UTP (twisted pair) 64 200m
HVV05-F cable hose 1.5 mm21 72 300m
Cable cross-section 1 mm232 300m
Connection of a column/riser with telephones only (audio system) with distributors
32
2
1
Bc
A
A = distance between the D4L-Gtwin distributor and telephone.
Bc = distance between the device where the column/riser is connected and the furthest
D4L-Gtwin distributor.
Compatibility of cables and cross-sections distance
A Bc A+Bc
RAP-GTWIN cable (for new installations) 1 72 50m 200m 200m
Telephone cable Ø 0.6 mm without cover 64 50m 150m 150m
CAT5 UTP (twisted pair) 64 50m 1 5m2 1 5m2
HVV05-F cable hose 1.5 mm21 72 50m 1 5m2 1 5m2
Cable cross-section 1 mm232 50m 50m 75m
§
§
GTWIN SYSTEM MANUAL 18
For information about the maximum length of all of the Bus wiring in the installation (sum) and
connection of the door panel(s), see the following paragraphs.
For information about the maximum length of all of the Bus wiring in the installation (sum) and
connection of the door panel(s), see the following paragraphs.
No.
of users

CONNECTION OF THE AUDIO DOOR ENTRY SYSTEM WITH TELEPHONES ONLY (1 BUILDING)
The instructions described below are valid only for fully audio systems.
1 column/riser with an access panel and 1 power supply
Ax+Bc
C
column/riser maximum 127 users
Audio door entry system
Gtwin power supply
C = distance between the power supply and access panel.
Compatibility of cables and cross-sections Distance Sum
(*)
c
RAP-GTWIN cable (for new installations) 600m 800m
Telephone cable Ø 0.6 mm without cover 300m 600m
CAT5 UTP (twisted pair) 200m 800m
HVV05-F cable hose 1.5 mm2300m 300m
Cable cross-section 1 mm2300m 300m
4 columns/risers with 1 column multiplexer, 1 power supply and 1 or 2 access panels
4 columns/risers
maximum 127 users
Ax+
Bc4
Ax+
Bc3
Ax+
Bc2
D
Ax+
Bc1 C2
C1
MC-Gtwin
column multiplexer
FA-Gtwin
power supply
Audio door entry system
Cx = distance between the column multiplexer and access panel.
D = distance between the column multiplexer and power supply.
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§
§
19 GTWIN SYSTEM MANUAL
This chapter describes the different connection modes of the door panels in systems with telephones only
(1 building).
For information about the connection and distances of the column/riser, see the paragraph 'Connection
of columns/risers with telephones only.'
(*) The sum of all of the Bus wiring in the installation is obtained with :the sum of all of the component parts
C+Bc+A1+A2+...+An.
For information about the connection and distances of the column/riser, see the paragraph 'Connection
of columns/risers with telephones only.'
Audio door entry system

Compatibility of cables and cross-sections D eistanc Sum
(*)
cx D
RAP-GTWIN cable (for new installations) 400m 5m 800m
Telephone cable Ø 0.6 mm without cover 100m 5m 600m
CAT5 UTP (twisted pair) 100m 5m 800m
HVV05-F cable hose 1.5 mm250m 5m 300m
Cable cross-section 1 mm250m 5m 150m
4 columns/risers with 1 panel multiplexer, 2 power supplies and up to 4 main panels
D1
D2
E4
E3E2
E1
Ax+
Bc1
Ax+
Bc2
Ax+
Bc3
Ax+
Bc4
Panel multiplexer
Gtwin power supply
Ex = distance between the panel multiplexer and access panel.
Dx = distance between the panel multiplexer and power supply.
Compatibility of cables and cross-sections
D eistanc Sum
Ex Dx Panels Columns/
risers
RAP-GTWIN cable (for new installations) 400m 5m 1600m 800m
Telephone cable Ø 0.6 mm without cover 200m 5m 800m 600m
CAT5 UTP (twisted pair) 100m 5m 400m 800m
§
GTWIN SYSTEM MANUAL 20
Audio door
entry
system
4 columns/risers
maximum 127 users
(*) The sum of all of the Bus wiring in the installation is obtained with :the sum of all of the component parts
C1+C2+D+Bc1+Bc2+Bc3+Bc4 +A1+A2+...+An.
For information about the connection and distances of the column/riser, see the paragraph
'Connection of columns/risers with telephones only.'
The sum of all of the wiring of the Bus of door panels is obtained by the E1+E2+E3+E4+D1, whilesum of parts
the sum of all of the wiring of the column/riser Bus is obtained by the sum of parts
Bc1+Bc2+Bc3+Bc4+A1+A2+...+An+D2.
Audio door
entry
system
Audio door
entry
system
Audio door
entry
system
Gtwin power supply