Texecom UDL V.21 User manual

INSTALLATION MANUAL
V.21, V.22 and V.22bis Modem
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Contents
1. Regulatory Requirements.................................................. 3
Application .........................................................................................3
Approval.............................................................................................3
REN Rating ........................................................................................4
2. Overview ............................................................................ 4
General ..............................................................................................4
Operation ...........................................................................................5
3. Installation.......................................................................... 6
Connection Status.............................................................................6
UDL-Modem PCB Layout..................................................................6
Mounting the UDL-Modem................................................................7
Connecting the UDL-Modem to the Telephone Line .......................8
Testing ...............................................................................................9
Clearing the NVM Security Password.............................................10
4. Specifications................................................................... 11
The UDL-Modem conforms to European Union (EU) Low Voltage Directive (LVD)
73/23/EEC (amended by 93/68/EEC) and Electro-Magnetic Compatibility (EMC)
Directive 89/336/EEC (amended by 92/31/EEC and 93/68/EEC).
The CE mark indicates that this product complies with the European
requirements for safety, health, environment and customer protection.

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1. Regulatory Requirements
The UDL-Modem unit must be installed by an electrically competent person.
Before attempting to install the UDL-Modem unit, the installer must be aware of
the regulatory requirements detailed in this section.
Application
The UDL-Modem is suitable for connection to the following types of telephone
line:
•Direct exchange lines (PSTN).
•PABX exchanges (with or without secondary proceed indication).
Approval
The UDL-Modem is classified as a Stand Alone Modem Apparatus and has been
approved for connection to analogue PSTN in the UK for the following usage:
•Host Independent Modem (Answer Only Operation)
•Serial Connection
•Hard-wired connection to the network
Any other usage will invalidate any approval given to the apparatus, and as a
result the apparatus ceases to comply with the standards against which the
approval was granted. The standards against which the approval was granted
are as follows:
•TBR 21
•EN 41003
•EN 60950
The apparatus is marked in accordance with the Telecommunications Apparatus
Marking and Labelling order 1985 (SI 1995 / 717).

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APPROVED for connection to telecommunication
systems specified in the instructions for use
subject to the conditions set out in them
650074
Texecom
Remote UDL Com REN=1 BABT
REN Rating
As a guide to the number of apparatus that can be simultaneously connected to
an exclusive line, the sum of the REN values must not exceed 4. A BT telephone
is assumed to have a REN = 1 unless otherwise marked.
The UDL-Modem has REN = 1.
2. Overview
General
The UDL-Modem consists of a single PCB enclosed in a small plastic case. It is
compatible with the following Control Panels:
•Veritas R8 Plus
•Veritas Excel
•Veritas Digitas XL
The unit is connected to the Control Panel via a 4-wire harness (supplied) and
can be mounted inside the Control Panel. Connections are provided to connect
the UDL-Modem to the Public Switched Telephone Network (PSTN).
In order to use the UDL-Modem you will require a PC with Windows 95, 98 or NT
and an analogue modem that supports V.21, V.22 or V.22bis operation.
To obtain your FREE copy of the FastCom Programmer Software and Veritas
upload/download (Veritas UDL) software please complete and return the
Software Registration form enclosed with the UDL-Modem.

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Control Panel
Remote UDL-Com
Control Panel PCB
Modem
PC and Modem running
Software
Veritas
UDL
Telephone Network
The UDL-Modem can accept serially connected telephone apparatus. When the
UDL-Modem is online it will temporarily disconnect all serially connected
telephone apparatus (e.g. phones, answer-phone, etc.) so that they do not
interfere with data transmission. This means that the UDL-Modem does not have
to be connected to a dedicated telephone line.
Operation
In its normal mode of operation the UDL-Modem will monitor the telephone line
for an incoming ringing signal. The LED flashes once every second when the
unit is in this mode. Once the ringing signal is detected the following sequence
of events occur.
•The UDL-Modem will pick up the telephone line, and establish a
connection with the remote modem. If a connection is established the
LED will flash at a faster rate.
•Once the connection is established the remote user may upload data
from the control panel or download data from a PC.
•Once the remote user has finished, the remote modem will go offline
forcing the UDL-Modem to hang up and return to its normal mode.

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3. Installation
Connection Status
Connection terminals on the UDL-Modem are described as either "Safety Extra-
Low Voltage" circuits (SELV) or "Telecommunications Network Voltage" circuits
(TNV).
The PCB layout and table below shows the two types of circuits.
•It is important that the installer ensures that TNV connections are only
connected to the PSTN, and SELV circuits are only connected to other
circuits designated as SELV circuits.
•Interconnection circuits should be such that the equipment continues to
comply with the requirements of 4.2 of EN 41003 for TNV circuits and 2.3
of EN 60950 for SELV circuits, after making connections between circuits.
UDL-Modem PCB Layout
TO PANE L
J1
!
"
#
Answer Phone Deferred
J2
LED1
ABA1B1
$
Figure 1. UDL-Modem PCB Layout

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No PCB
Reference
Safety
Status Description
!
J2 – Answer
Phone
Deferred Pins
SELV
Jumper Removed: Answer-Phone
Deferred Disabled – The UDL-Modem will
answer any incoming calls after
approximately three rings and attempt to
connect with the remote modem.
Jumper Fitted: Answer Phone Deferred
Enabled – In order for the UDL-Modem
Module to establish a connection, the
remote PC will dial in and then hang-up
the call after a pre-programmed delay.
The remote PC will dial in again and the
UDL-Modem Module will now answer the
call and attempt to establish a connection
with the remote modem.
"J1 – To Panel SELV 4-pin connector to control panel. Use
harness supplied with unit.
#LED 1 -
Status LED, flashes every second whilst
UDL-Modem is idle. Flashes fast when
the UDL-Modem is online
$A B A1 B1 TNV Telephone line connections.
Mounting the UDL-Modem
%To install the UDL-Modem Proceed as follows:
1) Isolate ALL power from the control panel (battery and mains). Do not
attempt to continue if the mains or battery supply is still present.
2) Remove the two cover screws from the UDL-Modem and unclip the
two halves of the case.
3) Plug one end of the 4-wire harness onto J1 and the other end onto the
control panel connector (PL1 – PC-LINK). Ensuring that the harness
enters through the cable entry knockout “A” (see Figure 2) in the base.
4) Ensure that the Answer Phone Deferred link “J2” is set for the
appropriate setting, see Figure 1.
5) Secure the UDL-Modem to the control panel base using the self-
adhesive pads.

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6) Refer to "Telephone Line Connections".
TO PAN E L
J1
Answer Phone Deferred
J2
LED 1
ABA1B1
Te le p h o n e
Cable Entry (B)
Control Panel
Cable Entry (A)
Figure 2. Cable Routing
Connecting the UDL-Modem to the Telephone Line
%To connect the telephone line, proceed as follows:
1) Connection to the telephone network must be made via an NTE5
master socket (Line Box).
2) Using the cable type 1/0.5mm CW1308, strip back 5mm of the
required cores and feed through cable entry “B”.
3) CW1308 cable is available from RS Components (Part No. 368-413).
Alarm or any other type of cable must not be used.
4) Connect the cores to the terminal blocks marked “A”, “B”, “A1" and
“B1”.
5) Remove the two screws from the BT master socket and remove the
bottom section from the master socket.

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6) Connect the cable from the UDL-Modem to the BT master socket
terminals.
7) A special insertion tool will be required to connect the cable to the
master socket, this is available from RS Components (Part No. 470-
487).
8) Replace the bottom section of the master socket and re-secure the two
screws.
A
Te l e c o m
Master
Socket
See Note 1 See Note 2 See Note 2
Remote UDL-Com
PCB
Te le c o m
Extension
Socket
Te le c o m
Extension
Socket
B
A1
B1
Figure 3. PSTN Connections
Note 1:
Note 1:Note 1:
Note 1: All apparatus that require access to emergency services (999 & 112)
must be connected to the master socket. Devices that do not require access to
the emergency services such as faxes, modems and answer machines etc can
be connected to the extension sockets (see Note 2 below).
Note 2:
Note 2:Note 2:
Note 2: Devices that are connected to the extension sockets will be isolated
from the telephone line whilst the UDL-Modem is active and therefore access to
the line (including emergency services) during this period is inhibited.
Testing
%Once all the installation steps have been completed, proceed as follows:
1) Connect power to the control panel.
2) Observe that the LED on the UDL-Modem flashes once a second.
3) Ask the operator of the Veritas UDL Software to establish a connection
and observe that the LED flashes at a faster rate when the connection
is established.

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4) Ask the operator of the Veritas UDL Software to perform an upload
from the control panel.
5) Once the upload is completed ask the operator of the Veritas UDL
Software to hang-up and observe that LED returns to its flashing
mode.
6) Secure the cover of the UDL-Modem using the two screws supplied.
7) Finally replace and secure the cover on the control panel.
Clearing the NVM Security Password
The Veritas UDL Software has the option to send a password, which is stored in
the UDL-Modem’s NVM. Once the password is set any future communication
attempts from the PC will only be accepted if the password in the PC matches
the password stored in the UDL-Modem. The password for the Veritas UDL
Software is configured in the modem setup screen, see the on line help for
further details.
%To clear the NVM password proceed as follows:
1) Remove power from the UDL-Modem by unplugging the 4-wire
harness.
2) Fit jumper link across J2 (Answer Phone Deferred).
3) Re-apply the power to the UDL-Modem by plugging the 4-wire harness
back on.
4) Within 5 seconds remove jumper link J2, the LED will flash on and off
three times to indicate that the NVM has been cleared.
5) Re-fit jumper link to J2 if Answer Phone Deferred is required.

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4. Specifications
Supply 11.5V –14V; 35mA dc (Standby); 100mA dc (Active)
The installer must ensure that power drawn by the
UDL-Modem plus any other auxiliary apparatus is
within the rating of the control panel (host) power
supply.
Supported Modes V.21 (300 baud), V.22 (1200 baud), V.22bis (2400
baud)
Case Size 135(w) x 77(h) x 28(d) mm.
Weight 200g
Environment 0 –40 °C
REN 1.0
BT Approval 650074

Texecom Limited, Bradwood Court, St. Crispin Way, Haslingden, Lancashire BB4 4PW, England.
Website http://www.texe.com
Technical Support (non-registered installers): 0891 617117
Calls charged at 50p per minute
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