Paradyne 3821PLUS manual Install the Circuit Card, Connect the DTE

COMSPHERE 3821Plus Modem

Install the Circuit Card

Slide the 3821Plus card into its slot in the 3000 Series Carrier. Press firmly until the back edge of the card seats in the socket of the DTE interface assembly.

Figure 2-4shows circuit cards in a carrier in which the NIM and DTE interface assembly were installed on the right side of the backplane.

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Figure 2-4. Installing the Card Into the Carrier

"Procedure

1.Turn the circuit pack lock until it is vertical, locking the 3821Plus card in place. See Figure 2-5.

2.When all cards are installed and locked in place, tighten the screws on the DTE interface assembly.

Front Panel

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Figure 2-5. Circuit Pack Lock

Connect the DTE

To connect the DTE to the modem, you can use two DB25 to 8-position modular adapters and an 8-pin RJ45-type modular cable instead of an RS-232 cable with DB25 connectors. Because of the large number of cables required for typical 3821Plus installations, the slimmer modular cable is recommended.

The connectors on the DTE interface assembly are labeled, from top to bottom, A, B, and C. These markings show which modem on a card is associated with each connector.

"Procedure

1.Connect the DB25 adapter or the connector on an RS-232 DTE cable to one of the DB25 connectors on the DTE interface assembly. Use a small screwdriver to fasten the connector to the backplate.

2.Connect the DB25 adapter or connector on the cable to the DB25 connector on the DTE. Use a small screwdriver to fasten the cable to the DTE.

2-4 January 1999 3821-A2-GB20-40