Zhone IMACS 8000, Руководство пользователя

Страница: 711 / 788

Pin Outs C-13
Using the Modem Port
The internal modem of the INF-R modem card is an asynchronous, ITU-T V.22bis modem. It
allows remote access to the terminal interface and automatic reporting of alarm messages to a
remote device. Table C-8 lists the specifications of the modem.
Table C-8. Modem Specifications
Connect the MODEM jack to a phone line, using a modular telephone cord. This is an RJ-45
jack which accepts an RJ-11 connector. The port uses only pins 4 (ground) 5 (Tip) and 6
(Ring). Figure C-11 shows the jack pin orientation.
Figure C-11.MODEM Jack
The modem automatically answers incoming calls. A remote operator can press the <Enter>
key to display the log-in screen. After entering a valid password, that operator has complete
access to the user interface.
To disconnect, the remote operator logs off and then hangs up. The modem automatically
resets and waits for the next call.
Parameter Rating
Compatibility ITU-T V.22 bis
Modulation 16-point QAM
Line Interface 2-wire, 600 ohms
Approval FCC Part 68
Equalization Receive: automatic adaptive
Transmit: fixed compromise
Receiver Sensitivity ON to OFF threshold: -45 dBm
OFF to ON threshold: -48 dBm
Dialing Mode DTMF
Speed 2400 bps, asynchronous
Code Set 8-bit data, one stop bit, no parity
Ringer Equivalence 0.2 A
Transmit Level -9.5 dBm
Pin 1
Pin 8