DCB V.23 Manuel de démarrage rapide - Page 3

Parcourez en ligne ou téléchargez le pdf Manuel de démarrage rapide pour {nom_de_la_catégorie} DCB V.23. DCB V.23 9 pages. Async modem

SPECIFICATIONS

2.1

Modem

Analog full duplex, 4-wire, 600 ohm balanced, Frequency Shift Keying

Mark-1300 hertz, Space-2100 hertz

Speed: 0 to 1200 bps ASYNC

Transmit level: 0 or -16 dBm

Receive range: 0 to - 42 dBm

Carrier turn-on time: less than 20 ms

900 Hertz Soft Carrier Turn-Off for multidrop operation

Switched carrier or constant carrier operation (RTS forced on or

terminal controlled)

Will drive up to 30 Km of cable depending upon wire gauge

2.2

Digital Interface

RS-232, DB-25S

Signals are Tx, Rx, RTS, CTS, DSR, DCD

RTS to CTS Delay: 40ms 4-wire, 50ms 2-wire

Rx data is clamped to mark when no receive carrier detect is present.

2.3

Loopback

Digital loop via rear panel switch or DIP switch #8. Test LED lights

during test.

2.4

Switches

Reset

Anti-streaming (8 seconds)

Phase Equalizer

Constant or Controlled Carrier

Soft Carrier Turn-off

2-Wire or 4-Wire Line

Transmit Level 0 or –16 dBm

Loopback

2.5

Indicators

Power, Tx Data, Rx Data, RTS, CTS, DCD, Test