Zhone IMA CS-200 System Especificações descarregar pdf (Página 181)

Reference Guide 5-3

Interface Card Interface Card Descriptions

5.2.3 Using the Modem Port

The internal modem of the INF+M T1E1*8 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 5-2 lists the specifications of the modem.

Table 5-2. Modem Specifications

Connect the MODEM jack to a phone line, using a modular telephone cord. This is an RJ-11

jack; it uses only pins 3 (Tip) and 4 (Ring). Figure 5-2 shows the jack pin orientation.

Figure 5-2. 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

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