Version: 1.06 172
Modem PSTN (next)
T
ECHNICAL
S
PECIFICATIONS
General
Consumption Tbd
Replacement Hot insertable/removable. There is no risk to damage hardware, but
a reset is required.
Test Automatic test of the access of the card by the CPU
(See LED ‘CS’ below)
LED
CS Card Selection: the card corresponds to a card declared in TWinSoft.
ER Error: The type of the card does not correspond to the one declared in
TWinSoft.
Modem PSTN
Description Modem for Switched Telephone Network (public or private)
WARNING: does not work on galvanic lines, or lines without power.
Speed 300 bps … 56.000 bps
Mode ITU-T : V21, V23, V22, V22bis, V32, V32bis, V34, V90
Bell 103 and Bell 212A
Compression 42bis LAPM, MNP2-5
Standards Conform to CTR21
Other characteristics Caller ID
Line detection (test if other communication active on the line)
Auto fallback
Connectors RJ12 or screw connector
Isolation 1500 Vrms
Protection Against overvoltage
Warning
: an external surge protector is still required
RS232 – RS485
Mode RS232 or RS485 (no simultaneous use of both modes)
Isolation No isolation. Gnd is linked to earth by internal connection
RS232 Signals: RxD, TxD, CTS, RTS, DTR, DSR, DCD, RI
Connector: 9 pin Sub-D (male)
RS485 • 2 wires (A+ and B-) for multi-points connection
• No need for termination resistor (
failsafe bias
resistors included:
pullup and pulldown resistors which assures a logical level TRUE
when A and B are open or in short circuit)
• Number of slaves: 256 (if RS485 technology of slaves allows it too)
• Screw connector: female with a step of 5.08 mm
LEDs RxD
(common to 2 ports) TxD
Indicate reception of data
Indicate transmission of data
Temperature
Storage -20°C to 70°C
Working (ambient) Standard: -5°C to 55°C
Ruggedized: -20°C to 70°C
Hygrometry 15 to 95 % without condensation
Dimensions
Without connector Height x Length x Depth: 150 x 83 x 29 mm
Weight 300 g
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