User Guide
6614-2202
TR-36
©
Westermo Teleindustri AB
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Tele and leased line modem
for RV-07 19” rack system
www.westermo.com
Legal information
The contents of this document are provided “as is”. Except as required by applicable
law, no warranties of any kind, either express or implied, including, but not limited to,
the implied warranties of merchantability and fitness for a particular purpose, are made
in relation to the accuracy and reliability or contents of this document. Westermo
reserves the right to revise this document or withdraw it at any time without prior
notice.
Under no circumstances shall Westermo be responsible for any loss of data or income
or any special, incidental, and consequential or indirect damages howsoever caused.
More information about Westermo can be found at the following Internet address:
http://www.westermo.com
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6614-2202
Safety
!
!
Before installation:
This modem is for restricted access area use only
Read this manual completely and gather all information on the unit. Make sure that
you understand it fully. Check that your application does not exceed the safe operating specifications for this unit.
This unit should only be installed by qualified personel.
This unit should be built-in to an apparatus cabinet, or similar, where access is
restricted to service personnel only.
The power supply wiring must be sufficiently fused, and if necessary it must be
possible to disconnect manually from the power supply. Ensure compliance to
national installation regulations.
This unit uses convection cooling. To avoid obstructing the airflow around the unit,
follow the spacing recommendations (see Cooling section).
Before mounting, using or removing this unit:
Prevent access to hazardous voltage by disconnecting the unit from power supply
and all other electrical connections.
Warning! Do not open connected unit. Hazardous voltage may occur within this
unit when connected to power supply or TNV circuits.
Prevent access to hazardous voltage by disconnecting the unit from power supply.
Warning! Do not open connected unit. Hazardous voltage may occur within this
unit when connected to power supply or TNV circuits.
Care recommendations
Do not drop, knock or shake the unit, rough handling above the specification may cause
damage to internal circuit boards.
Do not use harsh chemicals, cleaning solvents or strong detergents to clean the unit.
Do not paint the unit. Paint can clog the unit and prevent proper operation.
Do not expose the unit to any kind of liquids (rain, beverages, etc). The unit is not water-
proof. Keep the unit within the specified humidity levels.
Do not use or store the unit in dusty, dirty areas, connectors as well as other mechanical
part may be damaged.
If the unit is not working properly, contact the place of purchase, nearest Westermo dis-
tributor office or Westermo Tech support.
Maintenance
No maintenance is required, as long as the unit is used as intended within the specified
conditions.
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Agency approvals and standards compliance
Type Approval / Compliance
EMC EN 61000-6-2, Immunity industrial environments
EN 55024, Immunity IT equipment
EN 61000-6-3, Emission industrial environments
Safety EN 60950-1, IT equipment
PSTN ETSI TS103 021-1, ETSI TS103 021-2, ETSI TS103 021-3
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6614-2202
Declaration of Conformity
Westermo Teleindustri AB
Declaration of conformity
The manufacturer Westermo Teleindustri AB
SE-640 40 Stora Sundby, Sweden
Herewith declares that the product(s)
Typeofproduct Model Art no Installation manual
Rack mounted Tele and Leased
Line modem
Rack RV-07 3130-3001 6614-2201
Rack PS-20 HV 3120-3101 6614-2201
is in conformity with the following EC directive( s).
No Short name
89/336/EEG Electromagnetic Compatibility (EMC)
73/23/EEG Low Voltage Directive - LVD
TR-36 3614-0500 6614-2201
References of standards applied for this EC declaration of conformity.
No Title Issue
EN 61000-6-2 Immunity for industrial environments 2 (2001)
EN 55024 Informati on technology equipment – Immunity 1 (1998)
EN 61000-6-3 Emission standard for industrial environments 1 (2001)
EN 60950 Safety of information technology equipment 6 (2000)
EN 50121-4 Railway signalling and telecommunications apparatus
IEC 62236-4 Railway signalling and telecommunications apparatus
The las t two digits of the year in which the CE marking was affixed: 07
Hans Levin
TechnicalManager
26th September 2007
Postadress/Postal address Tel. Telefax Postgiro Bankgiro Corp. identity number Registered office
S-640 40 Stora Sundby 016-428000 016-428001 52 72 79-4 5671-5550 556361-2604 Eskilstuna
Sweden Int+46 16428000 Int+46 16428001
6614-2202
Org.nr/
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Type tests and environmental conditions
Electromagnetic Compatibility
Phenomena Test Description Test levels
ESD EN 61000-4-2 Enclosure contact ± 6 kV
Enclosure air ± 8 kV
RF field AM modulated IEC 61000-4-3 Enclosure 10 V/m 80% AM (1 kHz), 80 – 1 000 MHz
20 V/m 80% AM (1 kHz), 80 – 2 000 MHz
RF field 900 MHz ENV 50204 Enclosure 20 V/m pulse modulated 200 Hz, 900 ± 5 MHz
Fast transient EN 61000-4-4 Signal ports ± 2 kV
Power ports ± 2 kV
Surge EN 61000-4-5 Signal ports
unbalanced
Signal ports balanced ± 2 kV line to earth, ± 1 kV line to line
Power ports ± 2 kV line to earth, ± 2 kV line to line
RF conducted EN 61000-4-6 Signal ports 10 V 80% AM (1 kHz), 0.15 – 80 MHz
Power ports 10 V 80% AM (1 kHz), 0.15 – 80 MHz
Power frequency
magnetic field
Pulse magnetic field EN 61000-4-9 Enclosure 300 A/m, 6.4 / 16 ms pulse
Voltage dips and
interruption
Mains freq. 50 Hz EN 61000-4-16 Signal ports 100 V 50 Hz line to earth
Mains freq. 50 Hz SS 436 15 03 Signal ports 250 V 50 Hz line to line
Voltage dips and
interruption
Radiated emission EN 55022 Enclosure Class B
Conducted emission EN 55022 AC power ports Class B
Dielectric strength EN 60950 Signal port to other
Environmental
Temperature Operating 0 to +50ºC
Humidity Operating 5 to 95% relative humidity non condensing.
Altitude Operating 2 000 m / 70 kPa
Reliability prediction
(MTBF)
Service life Operating 10 year
Packaging
Enclosure – – –
Dimension W x H x D 485 x 135 x 180 mm
Weight TR-36 0.14 kg
Weight Total
(17 TR-36 + 2 PS-20)
Degree of protection IEC 529 Enclosure IP 20
Cooling Convection
Mounting 19” rack
EN 61000-4-8 Enclosure 100 A/m, 50 Hz, 16.7 Hz & 0 Hz
EN 61000-4-11 AC power ports 10 & 5 000 ms, interruption
EN 61000-4-29 DC power ports 10 & 100 ms, interruption
EN 55022 DC power ports Class B
isolated ports
Power port to other
isolated ports
Storage & Transport –25 to +70ºC
Storage & Transport 5 to 95% relative humidity non condensing.
MIL-HDBK217F
Operating
± 2 kV line to earth, ± 2 kV line to line
10 & 500 ms, 30% reduction
100 & 1 000 ms, 60% reduction
10 ms, 30% reduction
10 ms, 60% reduction
+20% above & –20% below rated voltage
2 kVrms 50 Hz 1 min
3 kVrms 50 Hz 1 min
2 kVrms 50 Hz 1 min (@ rated power <60 V)
4 kg
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6614-2202
Description
TR-36 is designed to satisfy industry’s demands on reliability and functionality in environments with high levels of interference. The modem has an RS-232 interface and works
both as calling/answering and on 2- or 4-wire leased line. TR-36 can handle rates up to
115.2 kbit/s on the terminal side and up to 33.6 kbit/s on the line side. Specific parameters can also be set in hardware using DIP-switches.
The modem is equipped with transient protection on the line side and a “watchdog” that
monitors and automatically resets the modem in the event of a fault. These functions
together with the possibility for remote configuration makes the modem perfect for
installation at unmanned sites and prevent the need of costly service trips.
The modem also has password protection and dial-back security to ensure that only
authorised users can communicate with the modem.
TR-36 is intended for RV-07 19” rack system.
In the TR-36 there is also an RS422/485 interface allowing multidrop connections to
many types of industrial equipment.
… Data rate up to 33.6 kbit/s with Fast Connect
… Terminal rate up to 115.2 kbit/s
… 2- and 4-wire leased line
… V23 HDX with multidrop
… DTR and incoming data dialling
… DIP-switch configuration
… Watchdog
… Secure call back and access
… Industrial environment transient protection on all interfaces
… Up to 11 bits
… Tri-Galvanic isolation (interface/line/supply)
… Caller ID presentation and answering
… Remote configuration
… RS-422 / RS-485 interface
… Dial backup for PSTN and Leased Line
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Interface specifications
Power RV-07, 17 pcs TR-36, PS-20 HV
Power supply 110 – 250 VDC +10 / –10%
115 – 230 VAC +15 / –10%
Power consumption 500/240 mA, 50 W
Rated frequency DC / 48 – 62 Hz
Fuse, F1 4 AS 5x 20 mm
Isolation to All other ports 3 kV
Connection Detachable screw terminal
Shielded cable Not required
* Direction relative this unit
Power RV-07, 17 pcs TR-36, ext 24 – 48 VDC
Power supply 24 – 48 VDC
Power consumption 34 W
Rated frequency DC
Isolation to All other ports 1.5 kV
Connection Detachable screw terminal**
Shielded cable Not required
rms 50 Hz 1 min
rms 50 Hz 1 min
* Direction relative this unit
** Maximum wire length to external power supply < 10 m.
Public Switched Telephone Network (PSTN)
Electrical specification Public Switched Telephone Network
Data rate 300 bit/s to 33.6 kbit/s
Protocol B103, B212, V21, V22, V22B, V23C,V23HDX, V32, V32B, V34
Protection Installation Fault Tolerant (up to ±60 V)
Isolation to
Power port 3 kV
Leased line 2 kV
RS-232 2 kV
RS-485 2 kV
rms 50 Hz 1 min
rms 50 Hz 1 min
rms 50 Hz 1 min
rms 50 Hz 1 min
Connection Detachable screw terminal
Shielded cable Not required
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6614-2202
Leased Line (LL)
Electrical specification 2- or 4-wire Leased Line
Data rate 300 bit/s to 33.6 kbit/s
Protocol B103, B212, V21, V22, V22B, V23C, V23HDX, V23FDX, V32,
V32B, V34
Transmission range/ Budget PSTN 30 dB
Leased line 40 dB
Protection Installation Fault Tolerant (up to ±60 V)
Isolation to Power port
PSTN line
RS-232
RS-485
rms 50 Hz 1 min
3 kV
rms 50 Hz 1 min
2 kV
2 kV
rms 50 Hz 1 min
rms 50 Hz 1 min
2 kV
Connection Detachable screw terminal
Shielded cable Not required
RS-422/485
Electrical specification EIA/TIA-485 ITU V.11 2-wire or 4-wire twisted pair
Data rate 300 bit/s to 115.2 kbit/s
Data format 7 or 8 data bits, Odd, even or none parity, 1 or 2 stop bits,
Σ 9–12 bits
Protocol Transparent
Retiming Yes
Turn around time <10 μs (half duplex)
Transmission range 1200 m, depending on data rate and cable type (EIA RS-485)
Settings 120 Ω termination and failsafe biasing 680 Ω
Protection Installation Fault Tolerant (up to ±60 V)
Isolation to
Power port 3 kV
PSTN line 2 kV
Leased line 2 kV
rms 50 Hz 1 min
rms 50 Hz 1 min
rms 50 Hz 1 min
Connection Detachable screw terminal
Shielded cable Not required*
Miscellaneous Do not connect RS-232 and RS-422/485 simultaneously
* To minimise the risk of interference, a shielded cable is recommended when the cable is located inside 3 m
boundary to the rails and connected to this port.
The cable shield should be properly connected (360°) to an earthing point within 1 m from this port. This earthing point should have a low impedance connection to the conductive enclosure of the apparatus cabinet, or
similar, where the unit is built-in. This conductive enclosure should be connected to the earthing system of an
installation and may be directly connected to the protective earth.
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RS-232
Electrical specification EIA/TIA-232
Data rate 300 bit/s to 115.2 kbit/s
Data format 7 or 8 data bits, Odd, even or none parity, 1 or 2 stop bits;
Σ 9–12 bits
Protocol Transparent
Retiming Yes
Transmission range Cable length ≤15 m
Isolation to
Power port 3 kV
PSTN line 2 kV
Leased line 2 kV
rms 50 Hz 1 min
rms 50 Hz 1 min
rms 50 Hz 1 min
Connection 9-pin D-sub female (DCE) and Detachable screw terminal
(DCE )
2
Connector size Detachable screw terminal 0.2 – 2.5 mm
(AWG 24 – 12)
Shielded cable Not required*
Conductive housing Isolated to all other circuits
Miscellaneous Do not connect RS-232 and RS-422 / 485 simultaneously
* To minimise the risk of interference, a shielded cable is recommended when the cable is located inside 3 m
boundary to the rails and connected to this port.
The cable shield should be properly connected (360°) to an earthing point within 1 m from this port.
This earthing point should have a low impedance connection to the conductive enclosure of the apparatus
cabinet, or similar, where the unit is built-in. This conductive enclosure should be connected to the earthing
system of an installation and may be directly connected to the protective earth.
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6614-2202
Connections
TR-36
LED Status Indicators
RS-232
4
Jack socket
3
2
1
4
3
2
1
Power
Position Direction* Description Product
marking
1 In AC: Neutral
DC: – Voltage
2 In AC: Line
DC: + Voltage
RS-422/485
PSTN
Leased Line
To minimise the risk of interference, a shielded cable is recommended when the cable is located inside 3 m
boundary to the rails and connected to this port.
The cable shield should be properly connected (360°) to an earthing point within 1 m from this port. This earthing point should have a low impedance connection to the conductive enclosure of the apparatus cabinet, or
similar, where the unit is built-in. This conductive enclosure should be connected to the earthing system of an
installation and may be directly connected to the protective earth.
PSTN
Position Direction* Description
Screw terminal*
2 In/Out PSTN Transmit/ Receive
1 In/Out PSTN Transmit/ Receive
* The PSTN screw terminals are shared with 2-wire Leased line
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Leased Line
Position Direction* Description
1 Out 4-wireTransmit
In/Out 2-wire Receive/ Transmit
2 Out 4-wireTransmit
In/Out 2-wire Receive/ Transmit
3 In 4-wire Receive
In/Out 2-wire Receive/ Transmit at Leased line PSTN backup
4 In 4-wire Receive
In/Out 2-wire Receive/ Transmit at Leased line PSTN backup
* Direction relative this unit
RS-422/485
Position Direction Description Product marking
1 In R+ (A’) Receive RS-422/485 4-wire R+
2 In R– (B’) Receive RS-422/485 4-wire R–
Out T+ (A) Transmit RS-422/485 4-wire
3
In/Out T+ (A/A’) Transmit/Receive RS-485 2-wire
T/R+
Out T– (B) Transmit RS-422/485 4-wire
4
T/R–
In/Out T+ (A/A’) Transmit/Receive RS-485 2-wire
RS-232 (DCE)
Position
D-sub Direction* Description Product marking
1 Out Data Carrier Detect (DCD) DCD
2 Out Received Data (RD) RD
3 In Transmitted Data (TD) TD
4 In Data Terminal Ready (DTR) DTR
5 – Signal Ground (SG) SG
6 Out Data Set Ready (DSR) DSR
7 In Request To Send (RTS) RTS
8 Out Clear To Send (CTS) CTS
9 Out Ring Indicator (RI) RI
* Direction relative this unit
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LED indicators
LED Status Indication of
RTS OFF RTS signal is inactive
ON RTS signal is active
RD OFF No data
ON / FLASH The modem transmitting data on the DTE interface
TD OFF No data
ON / FLASH The modem receiving data on the DTE interface
DCD OFF DCD signal is inactive
ON DCD signal is active, modem has detected a carrier or the signal is
set to always on
REL OFF Reliable mode is off, direct or normal mode
ON Reliable mode is on
FLASH Reliable mode with error correction and compression
LINE OFF The modem is on-hook
ON The modem is off-hook with a established connection
FLASH Line backup interface in use
PWR OFF The modem has no power
ON The modem is up and running
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DIP-switch settings
!
4
3
2
1
4
3
2
1
Before DIP-switch settings:
Prevent damage to internal electronics from electrostatic discharges (ESD)
by discharging your body to a grounding point (e.g. use of wrist strap).
NOTE DIP-switch alterations are only effective after a power on.
S1 S2 S3 S4 S5
S1 DIP-switch
Stored values / Auto detect
ON
1 2 3 4 5 6 7 8
Use stored values
* 300 and 600 bit/s not supported
S1 DIP-switch
Selection of DTE speed
ON
1 2 3 4 5 6 7 8
ON
1 2 3 4 5 6 7 8
ON
1 2 3 4 5 6 7 8
ON
1 2 3 4 5 6 7 8
300 bit/s
600 bit/s
1200 bit/s
2400 bit/s
ON
1 2 3 4 5 6 7 8
ON
1 2 3 4 5 6 7 8
ON
1 2 3 4 5 6 7 8
ON
1 2 3 4 5 6 7 8
ON
1 2 3 4 5 6 7 8
Auto detect*
9600 bit/s
19.2 kbit/s
38.4 kbit/s
57.6 kbit/s
ON
1 2 3 4 5 6 7 8
4800 bit/s
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ON
1 2 3 4 5 6 7 8
115.2 kbit/s
6614-2202
S1 DIP-switch
Selection of DTE format
ON
1 2 3 4 5 6 7 8
ON
1 2 3 4 5 6 7 8
ON
1 2 3 4 5 6 7 8
ON
1 2 3 4 5 6 7 8
ON
1 2 3 4 5 6 7 8
ON
1 2 3 4 5 6 7 8
ON
1 2 3 4 5 6 7 8
ON
1 2 3 4 5 6 7 8
7E 1S
7O 1S
8N 1S
8E 1S
8O 1S
Direct mode 8E1 or 8O1
8O1 in command mode
Direct mode 7E1 or 7O1
8N1 in command mode
7N 2S
ON
1 2 3 4 5 6 7 8
ON
1 2 3 4 5 6 7 8
ON
1 2 3 4 5 6 7 8
ON
1 2 3 4 5 6 7 8
ON
1 2 3 4 5 6 7 8
7E 2S
7O 2S
8N 2S
8E 2S
8O 2S
S2 DIP-switch
Leased Line Mode selection
ON
1 2 3 4 5 6 7 8
ON
1 2 3 4 5 6 7 8
Leased line disable,
PSTN enable
Leased line V.23 multidrop
For V.23 Multidrop settings,
see selection below.
S2 DIP-switch
DTE interface Selection
ON
1 2 3 4 5 6 7 8
RS-422/485 disable,
RS-232 enable
ON
1 2 3 4 5 6 7 8
ON
1 2 3 4 5 6 7 8
ON
1 2 3 4 5 6 7 8
Leased line answering
Leased line calling
RS-422/485 enable,
RS-232 disable
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S2 DIP-switch
RS-422/485
ON
1 2 3 4 5 6 7 8
RS-422/485, 2-wire
ON
1 2 3 4 5 6 7 8
RS-422/485, 4-wire
S2 DIP-switch
Leased line 2/4 wire selection
ON
1 2 3 4 5 6 7 8
Leased line 2-wire
ON
1 2 3 4 5 6 7 8
Leased line 4-wire
S2 DIP-switch
Selection PSTN backup of Leased line
ON
1 2 3 4 5 6 7 8
Backup of leased line disabled
ON
1 2 3 4 5 6 7 8
Backup of leased line enabled
S2 DIP-switch
Selection of answering/calling mode for PSTN backed up Leased Line
ON
1 2 3 4 5 6 7 8
Answering
ON
1 2 3 4 5 6 7 8
Calling
S2 DIP-switch
Remote configuration control
ON
1 2 3 4 5 6 7 8
Use stored values
ON
1 2 3 4 5 6 7 8
Remote configuration disabled
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6614-2202
S3 DIP-switch
Selection of line speed and modulation
ON
1 2 3 4 5 6 7 8
ON
1 2 3 4 5 6 7 8
ON
1 2 3 4 5 6 7 8
ON
1 2 3 4 5 6 7 8
ON
1 2 3 4 5 6 7 8
ON
1 2 3 4 5 6 7 8
ON
1 2 3 4 5 6 7 8
ON
1 2 3 4 5 6 7 8
Use saved parameters
defined by AT+MS
V.21 300
V.23 1200 hdx
V.22 1200
V.22bis 2400
V.32bis 4800
V.32bis, 1 9600
V.32bis 9600
ON
1 2 3 4 5 6 7 8
ON
1 2 3 4 5 6 7 8
ON
1 2 3 4 5 6 7 8
ON
1 2 3 4 5 6 7 8
ON
1 2 3 4 5 6 7 8
ON
1 2 3 4 5 6 7 8
ON
1 2 3 4 5 6 7 8
V.34, 1 9600
V.32bis 14400
V.34 19200
V.34 24000
V.34 28 800
V.34 33600
Automatic line speed
S3 DIP-switch
PLC parameter setting
ON
1 2 3 4 5 6 7 8
Use stored values
S3 DIP-switch
Flow control DTE interface
ON
1 2 3 4 5 6 7 8
Use stored value for AT&Kn
S3 DIP-switch
Dial abort
ON
Use stored values
1 2 3 4 5 6 7 8
S3 DIP-switch
Blind dialing
ON
1 2 3 4 5 6 7 8
ON
1 2 3 4 5 6 7 8
ON
1 2 3 4 5 6 7 8
PLC settings
(ATQ1E0&C1&K0&A1)
RTS/CTS flow control enable
(AT&K3)
Dial abort disabled (AT&A1)
ON
1 2 3 4 5 6 7 8
6614-2202
Use stored values
ON
Enable blind dialling (ATX3)
1 2 3 4 5 6 7 8
17
S4 DIP-switch
Set modem to factory default
ON
1 2 3 4 5 6 7 8
Use stored values
ON
1 2 3 4 5 6 7 8
Restore factory default setting*
Don’t leave S4:1 in ON position if not intended to restore factory setting at every power on.
S4 DIP-switch
DCD, DTR and DSR control
ON
1 2 3 4 5 6 7 8
Use stored values
ON
1 2 3 4 5 6 7 8
DCD and DSR always on,
DTR ignored (AT&C0&D0&S0)
S4 DIP-switch
Data compression control
ON
1 2 3 4 5 6 7 8
Use stored values
ON
1 2 3 4 5 6 7 8
Data compression disabled
(AT%C0)
S4 DIP-switch
Auto retrain control
ON
1 2 3 4 5 6 7 8
Use stored values
ON
1 2 3 4 5 6 7 8
Auto retrain disabled (AT%E0)
S4 DIP-switch
Line mode setting
ON
1 2 3 4 5 6 7 8
ON
1 2 3 4 5 6 7 8
Use stored values
Buffer mode enabled (AT\N0)
S4 DIP-switch
Leased Line termination
ON
1 2 3 4 5 6 7 8
ON
1 2 3 4 5 6 7 8
Termination disabled
Termination of Transmitter / Receiver
in 2-wire mode and Transmitter in
4-wire mode
ON
1 2 3 4 5 6 7 8
ON
1 2 3 4 5 6 7 8
ON
1 2 3 4 5 6 7 8
Reliable mode enable (AT\N2)
Termination of Receiver
in 4-wire mode
Termination of both Transmitter
and Receiver in 4-wire mode
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6614-2202
S5 DIP-switch
RS-422/485 termination
ON
No termination
1 2 3 4
ON
1 2 3 4
Termination of both T and R
in 2-wire connection
Factory settings
ON
1 2 3 4 5 6 7 8
ON
1 2 3 4 5 6 7 8
S1
S2
ON
1 2 3 4 5 6 7 8
ON
1 2 3 4 5 6 7 8
S3
S4
ON
1 2 3 4
ON
1 2 3 4
Termination of R in 4-wire
connection
Termination of both T and R
in 4-wire connection
ON
S5
1 2 3 4
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19
V.23 2- / 4-wire HDX- / FDX-leased line settings
S1 DIP-switch
Selection of DTE speed
ON
1 2 3 4 5 6 7 8
S1 DIP-switch
Selection of DTE-format
1200 bit/s
ON
1 2 3 4 5 6 7 8
8E1, 8O1, 8O1
in command mode
S2 DIP-switch
Leased line mode selection
ON
1200 bit/s leased line /mulidrop
1 2 3 4 5 6 7 8
S2 DIP-switch
Leased line 2/4-wire selection
ON
2-wire leased line
1 2 3 4 5 6 7 8
S3 DIP-switch
V.23 line modulation
ON
1 2 3 4 5 6 7 8
ON
1 2 3 4 5 6 7 8
7E1, 7O1, 8N1, 8N1
in command mode
4-wire leased line
ON
V.23 1200 HDX/FDX
1 2 3 4 5 6 7 8
S3 DIP-switch
Carrier active using RTS or incoming data
ON
Incoming data
1 2 3 4 5 6 7 8
S4 DIP-switch
Permanent carrier control
ON
Disabled
1 2 3 4 5 6 7 8
20
ON
RTS controlled
1 2 3 4 5 6 7 8
ON
Enabled
1 2 3 4 5 6 7 8
6614-2202
S4 DIP-switch
V.23 leased line termination*
ON
1 2 3 4 5 6 7 8
ON
1 2 3 4 5 6 7 8
Termination disabled
Termination of receiver
in 4-wire mode
ON
1 2 3 4 5 6 7 8
ON
1 2 3 4 5 6 7 8
Termination of transmitter /
receiver in 2-wire mode and
Transmitter in 4-wire mode
Termination of both transmitter /
receiver in 4-wire mode
* The leased line should be terminated at the end points.
Termination recommandations of Leased lines
and Dial-up connections
In some connections the communication line (Leased Line or PSTN) must be
terminated. The table below shows the right way to activate the termination
for different usages. As a standard, the receiver in multidrop systems at the end
points shall be terminated.
S4 DIP-switch
Termination recomendations for TR-36
ON
1 2 3 4 5 6 7 8
ON
1 2 3 4 5 6 7 8
ON
1 2 3 4 5 6 7 8
ON
1 2 3 4 5 6 7 8
PSTN
PSTN
Backup
2-wire
Leased Line
4-wire
Leased Line
ON
1 2 3 4 5 6 7 8
ON
1 2 3 4 5 6 7 8
ON
1 2 3 4 5 6 7 8
ON
1 2 3 4 5 6 7 8
Multidrop
V23 2-wire – endunit
Multidrop
V23 2-wire – dropunit
Multidrop
V23 4-wire – endunit
Multidrop
V23 4-wire – dropunit
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=Termination
TR-36 485
Slave unit Slave unit Slave unit
TR-36 485
Slave unit Slave unit Slave unit
Max 0.3 metre
=Termination
T+
T–
T+T- T +T- AB
R+
R–
T+
T
–
R– R+ R+T– T– B’ A’ B AT+T+ R–
RS-422/485 general advice
Termination recommendations
4-wire termination
2-wire termination
The RS-422/485 line must be terminated. In the TR-36, the termination is combined with
fail-safe functionality. The termination is used to prevent undefined states when the bus is
in tri-state condition.
… Using 2-wire RS-485 both ends should be terminated.
… Using 4-wire RS-485 both pairs shall be terminated at both ends.
… Using 4-wire RS-422 it’s only necessary to terminate the receivers.
RS-422/485 connection pins can be differently named. For some equipment brands
the T+ corresponds to A, but other brands might use some other naming convention.
If a unit does not work it can help to swap A and B.
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6614-2202
Mounting /Removal
Before mounting or removing the unit:
This unit has one separate protective earthing terminal (marked with “symbol” ), while
the unit is provided with two mains supply connectors. The grounding terminal of these
mains supply connectors is a functional earthing point only.
Prevent access to hazardous voltages by disconnecting the unit from AC/DC mains
supplies and all other electrical connections.
A protective earthing conductor should be connected to the protective earthing terminal
2
and have a cross-sectional area of at least 1.5 mm
Prevent damage to internal electronics from electrostatic discharges (ESD) by discharging
your body to a grounding point (e.g. use of wrist strap).
Mounting
This unit should be horizontally
mounted with screws in the holes
located in the left and right hand
brackets on the unit.
.
Connect the protective earthing
conductor to the protective earthing terminal, before connection of any AC/DC
mains supply or other electrical connections.
As this unit uses convection cooling, it is important to avoid obstructions that prevent
normal vertical airflow through the unit. For this reason a clearance of 1U below and
2U above the unit is recommended. These clearance distances should be increased if
heat from another unit is likely to cause an undesirable rise in temperature. Under no
circumstances should the air temperature around the unit exceed 15 degrees C above
the operating temperature of any modem installed in it. The unit should be installed in a
cabinet that has suitable fans and filters so that good airflow is maintained without the
ingress of dirt or dust.
Removal
Disconnect all AC/DC mains supplies and other electrical connections before the
removal of protective earthing conductor from the protective earthing terminal.
Note:
• Always add modems from one end in the rack.
• To ensure proper galvanic connection between front panels, do not leave empty
slots between modems.
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23
D2 D1
X4
P2
X3
P1
4
3
2
1
4
3
2
1
2
1
L
N
L
N
Rear connections
TR-36, RV-07 and Power Supply
Extern 24 VDC
PSU Fail
PSU Fail
PS-20 HV
Protective Earth
Power PS-20
Connection Description
3-pos screw terminal, L Line
3-pos screw terminal, N Neutral
3-pos screw terminal, PE Protective Earth, Not Connected Internally
Power External
Connection Description
2-pos screw terminal, 1 0 VDC
2-pos screw terminal, 2 +24 VDC
PSU Fail
Connection Direction Description
4-pos screw terminal no. 1 – C – Common
4-pos screw terminal no. 2 – NO – Normally Closed
4-pos screw terminal no. 3 – NC – Normally Open
4-pos screw terminal no. 4 – No Used
24
6614-2202
Windows configuration tool TD-Tool
The TD-Tool is a PC – application program with a graphical interface for easy configuration of the complex functions found on the enclosed CD or at the Westermo website.
Please refer to TD-Tool for a complete description of the functionality of the Windows
program.
AT-Commands
Please refer to the AT Commands Interface Guide found on the enclosed CD or at
the Westermo website for a complete list of all available AT-commands and a detailed
description of the serial AT-command interface.
Configuration
The TR-36 can be configured both from the local DTE interface and remotely over the
PSTN network. Independently if the local or remote interface is used the configuration
can be made with AT-commands or with a PC-based application configuration tool.
Basic configurations can also be made with DIP-switches locally.
Remote configuration
The TR-36 can be configured from a remote modem. To configure a TR-36 any GSM,
ISDN or PSTN modem can be used.
The modem used to configure is referred as the “local modem”.
Please make sure that the remote TR-36 is connected to the PSTN network and is
powered up.
… Connect the local modem to it's media (ISDN, PSTN or GSM)
… Connect the PC's com-port to the DTE interface of the local modem.
… Connect the power supply.
… Start a terminal emulation program (i.e. Windows Hyper-Terminal).
… Configure the local modem data rate and word format.
… Set up a connection to the remote TR-36 to be configured by using the nor-
mal dial command: ATD<No><CR>. When connected send the remote escape
sequence <++++>. The called remote TR-36 will acknowledges by requesting the
remote password. Enter the correct password (default: no password, just return).
Next; configure the remote TR-36 using AT-commands. The password for remote
configuration is defined with AT*WRCP – Remote configuration password.
… Configure the parameter on the remote TR-36 from your terminal program and
save the settings with AT&W.
… Hang up the connection using the ATH command.
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25
Application example
DTR
DSR
DCD
… TR-36 connected to TR-36 with DTR signal call
PSTN
Network
Configure the units
AT&F Set the unit to factory default.
AT&W Store default settings.
Set up the connection – The dialling modem
AT&Z0=”nnn” Store the number of the remote modem in the dialling TR-36.
AT&S0 Set DSR signal always high (if this signal is used to trig the DTR).
AT&B1 Activates automatic DTR dialling if DTR switches from low (OFF) to high (ON).
AT&W Save settings.
Switch DTR
from OFF
to ON
Set up the connection – The answering modem
ATA Enter the answer command when RING comes from the
The modem will now dial the phone number stored in the first location of the
telephone number table (AT&Z0=<nnn>)
network or set up ATS0=1 to auto answer on 1 RING signal
(or more than 1).
NOTE: If no valid DTR signal can be provided by external application, the modems DSR signal can
be used to trig the transmission. Connect the DSR signal via a relay, or other potential
free contact, to the DTR signal. A 10 kohm pull down resistor should also be connected
between the DTR and a signal that is always low e.g. the DCD.
Relay
External
application
10 kohm
May be required in harsh environments.
26
6614-2202
… TR-36 – Secure Call-back
The TR-36 is connected to a PLC which one want to restrict access to. The TR-36 can
support access control through the Secure Callback function. In this example password
and callback to a predefined number is chosen. The modem in the calling end is here
chosen to be a PSTN modem, but can be any of the PSTN, ISDN or GSM modem from
Westermo product range.
The DTE serial speed between the PLC – TR-36 and TDW-33 – PC is assumed to be
9600 8N1 but can be chosen to fit the actual system requirement.
Configure the TR-36
AT&F Set the unit to factory default
AT+IPR=9600 DTE baudrate 9600
AT+ICF=3,4 Character framing 8 data, 1 stop, parity
none
ATS0=1 Auto answer after first ring
ATQ1E0&C1&K0&A1 Suitable for PLC communication
AT&W Save settings
AT*WCB=4 Callback enabled, Password in one or more
positions in *wcbpwdx (x= 1,2 or 3), callback to number in wcbtab
(*wcbpwd1 corresponds to *wcbtab1. . .)
AT*WCBTAB=1,”+4670428000”,”n3Y9kA6otYZu8” Define callback number and password
in position 1.
When the password is entered number
+4670428000 will be called.
AT*WCBTIME=10 Define delay time between hangup
an callback.
The TR-36 will wait 10 s after hangup to
callback to allow the analogue modem to
hangup.
Configure the TDW-33
AT&F Set the unit to factory default
AT+IPR=9600 DTE baudrate 9600
AT+ICF=3,4 Character framing 8 data, 1 stop, parity
none
ATS0=1 Auto answer after first ring
AT&W Store default settings
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27
PSTN
Network
Set up the connection
The dialling modem
TDW-33
ATD0705123456 TR-36 answers the call and
The answering modem
TR-36
Comment
Dial the number to TR-36
requests to TDW-33
CONNECT 9600
Password: n3Y9kA6otYZu8
TR-36 verifies the password
to the passwords stored and
Operator/system at TDW-33 enters
Password n3Y9kA6otYZu8
if true compare dissconnects.
NO CARRIER Wait 10 s The connection is broken and TR-
36 waits the programmed 10 s for
TDW-33 to disconnect
TR-36 dials +4670428000 The number programmed corre-
sponding to the password is dialled,
preferable it’s the number to the
TDW-33
CONNECT 9600 CONNECT 9600 Connection is established between
the PC at TDW-33 and the PLC at
TR-36
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6614-2202
… Silent answering on predefined numbers TR-36
PSTN
Network
The TR-36 is connected to Power meter which is remotely monitored and the TR-36
shares the PSTN line with normal telephones which is preferred not to give a Ring signal
when the meter is read.
The TR-36 is setup to answer calls on the Caller ID received, the valid numbers to
answer is programmed into the TR-36. There exists a number of standards for sending
Caller ID please check which standard is used by your operator, the TR-36 supports the
major implementations. In this example the DTMF Caller ID version is used. Note some
implementations doesn’t give the possibility to make a silent answer since the Caller ID
is sent between first and second ring signal.
On the originating side any type of modem able to call a PSTN number can be used.
Configure the TR-36
AT&F Set the unit to factory default
AT+IPR=9600 DTE baudrate 9600
AT+ICF=3,4 Character framing 8 data, 1 stop, parity none
ATS0=0 No auto answer on Ring signals
ATQ1E0&C1&K0&A1 Suitable for PLC communication
AT&W Save settings
AT*WACCTAB=1,”016428000”
AT*WACCTAB=2,”016480250”
AT*WCID=3,3 Set Caller ID to A-number answer with DTMF coded numbers
Set the valid A-numbers for automatic answering
6614-2202
29
… Frequently used settings for PLC-systems
PSTN
Network
Most PLC-systems and other industrial applications where modems are used require the
same changes to the standard settings.
The most commonly encountered problems concern speed, parity and control signals
from the connected equipment.
Speed and parity are changed with the switches under the cover in block S1. If this action
does not solve the problem the modem’s answering codes and possible echoing of commands might be the source of the difficulty.
Below follows a list of commands that might resolve the problems. The commands may
of course be placed on one single command line if desired.
Configure the TR-36 connected to the PLC
AT&F Set the unit to factory default
ATV0 Gives the answering codes in short format. (digits)
ATQ1 No result codes are sent on the RS-232/V.24 connection.
ATE0 Commands that are sent from the terminal/computer etc. are not echoed back
to the RS-232/V.24 connection.
AT&C1 DCD will follow the carrier on the line.
AT&K0 No handshaking.
AT&A1 Character abort option on.
AT&W Save settings
Note: S3:5 may be used for this purpose.
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6614-2202
… Leased line connection using 2- or 4-wire
Leased Line
Leased line connections can be set up using either 2- or 4-wire.When renting a 4-wire
line from a telephone company one pair of cables for transmission and one pair for
reception are usually provided.
The maximum transmission distance depends on the attenuation of the line. The maximum value is theoretically 30 dBm. To have a good error rate it is recommended to keep
the attenuation under 25 dB. When renting lines from a telephone company a longer
transmission distance is normally possible as the signals are probably transmitted over
PCM-lines, i.e. fibre optic or other media with low attenuation.
To set the modem for leased line applications use the dip switches.
Configure the units
S2:1, 2 ON
S2:2 ON
S2:5 OFF Leased line 2-wire
S2:5 ON Leased line 4-wire
S1 Sets speed and parity for the RS-232 port.
S3 Decides line-speed. Must be set in direct mode applications.
To make switch setting active the power must be cycled OFF -> ON.
Leased line calling
Leased line answering
Resistance, attunation and distance for different wires
Tele Cable Area Resistance for
double cable
Ø 0,5 mm* ≈ 0,2 mm
Ø 0,6 mm* ≈ 0,3 mm
Ø 0,7 mm* ≈ 0,4 mm
Ø 0,8 mm ≈ 0,5 mm
Ø 0,9 mm ≈ 0,64 mm259 Ω/km 0,6 dB/km 42 km 50 km
2
175 Ω/km 1,1 dB/km 23 km 27 km
2
123 Ω/km 0,9 dB/km 28 km 33 km
2
93 Ω/km 0,8 dB/km 31 km 38 km
2
73 Ω/km 0,7 dB/km 36 km 43 km
Attunation Recommended
Max distance
(25 dB)
Max Distance
(30 dB)
* Frequently used in the local network
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31
… TR-36 485 – two wire half duplex
Termination
TR-36 485
PSTN
Network
1
2
3
4
In this application the TR-36 is set to communicate with a number of units with
RS-485 interface.
The communication is 2 wire half duplex at 38.4 kbit/s, 8 data, parity even and
1 stop bit.
Configure the TR-36 485
AT&F Set the unit to factory default
AT&W Store default settings
S2:3 ON RS-422/485 enable RS-232 disable
S2:4 OFF Select 2-wire RS-485
S1:4 ON 38.4 kbit/s
S1:7 ON 8 data bits even parity 1 stop bit
S4:8 ON Termination / Failsafe active
To make switch setting active the power must be cycled OFF ≥ ON.
32
6614-2202
Westermo Teleindustri AB • SE-640 40 Stora Sundby, Sweden
Phone +46 16 42 80 00 Fax +46 16 42 80 01
E-mail: info@westermo.se
Westermo Web site: www.westermo.com
Subsidiaries
Westermo Data Communications AB
SE-724 81 Västerås
Phone: +46 (0)16 42 80 00 • Fax: +46 (0)21 35 18 50
info.sverige@westermo.se
Westermo Data Communications Ltd
Talisman Business Centre • Duncan Road
Park Gate, Southampton • SO31 7GA
Phone: +44(0)1489 580-585 • Fax.:+44(0)1489 580586
E-Mail: sales@westermo.co.uk
Westermo Data Communications GmbH
Goethestraße 67, 68753 Waghäusel
Tel.: +49(0)7254-95400-0 • Fax.:+49(0)7254-95400-9
E-Mail: info@westermo.de
Westermo Teleindustri AB have distributors in several countries, contact us for further information.
Westermo Data Communications S.A.R.L.
9 Chemin de Chilly 91160 CHAMPLAN
Tél : +33 1 69 10 21 00 • Fax : +33 1 69 10 21 01
E-mail : infos@westermo.fr
Westermo Data Communications Pte Ltd
2 Soon Wing Road #08-05
Soon Wing Industrial Building
Singapore 347893
Phone +65 6743 9801 • Fax +65 6745 0670
E-mail: earnestphua@westermo.com.sg
REV.E 6614-2202 2008.10 Mälartryck AB, Eskilstuna, Sweden
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