Paradyne manual Dial Network Connection, Model 3810 Dial-Line Connection

COMSPHERE 3800 Series Modems

Dial Network Connection

The telephone company provides the line termination jacks for the type of service you request. You may choose to operate in either Permissive or Programmable mode. Advance coordination with the telephone company is suggested when connecting the modem to telephone dial lines (PSTN).

If you operate in the Permissive mode, the modem's transmit output level is fixed at approximately ±9 dBm. The telephone company assumes that the line loss is

3 dBm and no compensation is provided for additional losses. The resulting level at the telephone central office could be lower than the nominal ±12 dBm provided with Programmable mode. A Permissive mode telephone line is usually terminated with a USOC RJ11C jack.

If you operate in the Programmable mode, the telephone company installs a program resistor that adjusts the modem's output level so that the signal entering the telephone company's central office is at the maximum allowable level of ±12 dBm. Telephone lines for the Programmable mode are usually terminated with a USOC RJ45S jack or an RJ41S jack switched to Programmable.

Model 3810 Dial-Line

Connection

For the Model 3810, use the following procedures to connect the modem to the dial network interface:

Programmable mode

1.Insert the 8-position, 8-conductor modular plug into the jack labeled DIAL/ LEASED (3820), Figure 2-2.

2.Insert the other end of the modular cord into the dial network interface.

Permissive mode

1.Insert the 6-position, 4-conductor modular plug into the jack labeled DIAL/ LEASED (3820), Figure 2-2.

2.Insert the other end of the modular cord into the dial network interface.

NOTE

The modem is shipped with the Async Dial factory preset configuration stored in memory. This factory preset configures the modem for Permissive mode. To operate in Programmable mode, you must change the Dial Transmit Level configuration option using either the DCP (refer to the Dial Line configuration options in Chapter 9, Configure Branch) or the AT&J command (refer to Chapter 14, AT Command Set and S-Registers).

Model 3820 Dial-Line

Connection

Use the following procedures to connect a Model 3820 to the dial network interface:

Permissive mode

1.Insert the 6-position, 4-conductor modular plug into the jack labeled DIAL/ LEASED (3820), Figure 2-3.

2.Insert the other end of the modular cord into the dial network interface.

2-6 November 1996 3810-A2-GB30-20