Rack
RV-07B
The RV-07B is a 19” rack which can
hold up to 16 Westermo TR-36B
modems as well as two PS-20
power supplies. The rack is designed
to harsh industrial standards in applications where a number of modems
are required in the same location.
The rack has passed extensive
approvals testing by both Westermo
and external test houses, showing the rack can operate in environments with a high level of electromagnetic
interference.
Using the RV-07B and TR-36B allows a number of modems to be connected to a backplane thus eliminating
unnecessary wiring and also saving space.
The modems slide into the chassis from the front and connect to the backplane that provides all the connectors for the RS-422/485, RS-232, PSTN and Leased Line interfaces. The RV-07B can be fully powered by either
one or two Westermo PS-20 power supplies. With two power supplies, redundant supply is possible. In case
of a power failure, the second power supply activates and an alarm signal can be set up through the built-in
fault relay.
The RV-07B rack is designed for use with the Westermo TR-36B modem, which is an analogue V.34 PSTN and
Leased Line modem supporting modulation data rates up to 33.6 kbit/s. For more information, please refer to
the TR-36B documentation.
……Holds up to 16 TR-36B modems
……Redundant power supply and fault relay
Rack
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Interfaces
LED indicator
Alarm output
External power
24 VDC In
RS-232
RS-422/485
2
4
3
2
1
1
4
3
2
1
L
L
N
N
PSTN / Leased Line
Protective earth
External power
230 VAC
Application, interfaces
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Technical Data
RV-07B populated with 16 TR-36B modems and supplied with two PS-20 HV power cards
Power RV-07B, External 230 V
Rated voltage
100 – 240 VAC
Operating voltage
90 – 254 VAC
Rated current
Rated frequency
470
425
310
290
AC
Polarity
No polarity protection, an AC-product
Redundant power input
Yes
mA
mA
mA
mA
@
@
@
@
90 VAC
100 VAC
240 VAC
254 VAC
Isolation to
All other ports 3 kVrms 50 Hz 1 min
Connection
Detachable screw terminal
Connector size
0.2 – 2.5 mm2 (AWG 24 – 12)
Shielded cable
Not required
RV-07B populated with one TR-36B modems and DC supplied
Power RV-07B, External DC
Rated voltage
Operating voltage
Rated current
Rated frequency
Power consumption
Startup current
Polarity
Connection
12 to 48 VDC
10 to 60 VDC
130 mA @ 12 VDC
63 mA @ 24 VDC
40 mA @ 48 VDC
DC
2W
0.22 Apeak
Polarity dependent
32-pin Europe connector
Alarm output
Isolation to
Connection
Power port 3 kVrms 50 Hz 1 min
Signal ports 2 kVrms 50 Hz 1 min
Screw connector
Connector size
0.2 – 2.5 mm2 (AWG 24 – 12)
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Technical data
RS-232
Electrical specification
EIA RS-232
Data rate
300 bit/s to 115.2 kbit/s
Data format
Protocol
7 or 8 data bits, Odd, even or none parity, 1 or 2 stop bits,
9-12 bits
Transparent
Retiming
Yes
Circuit type
SELV
Transmission range
Cable lenght <15 m
Isolation to
Power port
PSTN line
Leased line
RS-422/485
Connection
9-pin D-sub female (DCE)
Shielded cable
Not required
Conductive housing
Isolated to all other circuits
Miscellaneous
Do not connect RS-232 and RS-422/485 simultaneously
RS-422/485
Electrical specification
Data rate
Data format
3
2
2
2
kVrms
kVrms
kVrms
kVrms
50
50
50
50
Hz
Hz
Hz
Hz
1
1
1
1
min
min
min
min
EIA RS-485
2-wire or 4-wire twisted pair
300 bit/s to 115.2 kbit/s
Protocol
7 or 8 data bits, Odd, even or none parity, 1 or 2 stop bits,
9-12 bits
Transparent
Retiming
Yes
Turn around time
<10 µs (half duplex)
Circuit type
TNV-1
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
PSTN line
Leased line
RS-232
Connection
Screw connector
Connector size
0.2 – 2.5 mm2 (AWG 24 – 12)
Shielded cable
Not required
Technical data
3
2
2
2
kVrms
kVrms
kVrms
kVrms
50
50
50
50
Hz
Hz
Hz
Hz
1
1
1
1
min
min
min
min
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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, V32, V32B, V34
Circuit type
TNV-3
Isolation to
Power port
PSTN line
Leased line
RS-422/485
RS-232
Connection
Screw connector
Connector size
0.2 – 2.5 mm (AWG 24 – 12)
Shielded cable
Not required
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, V32, V32B, V34
Transmission range
PSTN
Leased Line max
Protection
Installation Fault Tolerant (up to ±60 V)
Isolation to
Power port
PSTN line
RS-422/485
RS-232
Connection
Screw connector
Connector size
0.2 – 2.5 mm (AWG 24 – 12)
Shielded cable
Not required
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3
2
2
2
2
50
50
50
50
50
kVrms
kVrms
kVrms
kVrms
kVrms
Hz
Hz
Hz
Hz
Hz
1
1
1
1
1
min
min
min
min
min
2
3
2
2
2
30 dB
40 dB
kVrms
kVrms
kVrms
kVrms
50
50
50
50
Hz
Hz
Hz
Hz
1
1
1
1
min
min
min
min
2
Technical data
Type tests and environmental conditions
Electromagnetic Compatibility
Phenomena
Test
Dielectric strength
EN 60950
Environmental
Temperature
Humidity
Reliability predicton
(MTBF)
Altitude
MIL-C217F2
Service life
Description
Signal port to other
isolated ports
Power port to other
isolated ports
Power port to other
isolated ports with
rated power <60 V)
Test levels
2 kVrms 50 Hz 1 min
Operating
–40 to +70ºC
Storage & Transport
Operating
Storage & Transport
Operating
–40 to +70ºC
5 to 95% relative humidity
5 to 95% relative humidity
378 900 hours @ +25°C
Operating
2 000 m / 70 kPa
Operating
10 year
3 kVrms 50 Hz 1 min
2 kVrms 50 Hz 1 min
500 Vrms 50 Hz 1 min for GND
Packaging
Dimension W x H x D
Weight
Degree of protection
Cooling
Mounting
485 x 135 x 180 mm
2,05 kg
IEC 529
Enclosure
P 20
Convection
19” Rack
Approvals
Technical data
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