Westermo TD-36 - Manual (Page 13)

13 6618-2202
Public Switched Telephone Network (PSTN)
Electrical specification
Public Switched Telephone Network
Data rate 300 bit/s – 33.6 kbit/s
Protocol B103, B212, V21, V22, V22B, V23C, V23 HDX, V32, V32B, V34
Protection Installation Fault Tolerant (up to ±60 V)
Isolation to Power port 3 kV
rms
50 Hz 1 min
Leased Line 2 kV
rms
50 Hz 1 min
RS-232 2 kV
rms
50 Hz 1 min
RS-485 2 kV
rms
50 Hz 1 min
I/O 2 kV
rms
50 Hz 1 min
Connection RJ-11C and Detachable screw terminal
Connector size Detachable screw terminal 0.2 – 2.5 mm 2 (AWG 24 – 12)
Shielded cable Not required
Leased Line (LL)
Electrical specification
2- or 4-wire Leased Line
Data rate 300 bit/s – 33.6 kbit/s
Protocol B103, B212, V21, V22, V22B, V23C, V23 HDX, V32, V32B, V34
Transmission range PSTN 30 dB
Budget Leased Line max 40 dB
Protection Installation Fault Tolerant (up to ± 60 V)
Isolation to Power port 3 kV
rms
50 Hz 1 min
Leased Line 2 kV
rms
50 Hz 1 min
RS-232 2 kV
rms
50 Hz 1 min
RS-485 2 kV
rms
50 Hz 1 min
I/O 2 kV
rms
50 Hz 1 min
Connection Detachable screw terminal
Connector size 0.2 – 2.5 mm 2 (AWG 24 – 12)
Shielded cable Not required