COMSPHERE 3900 Series Modems

Configuration Options

3920 A Use Sync Leased (Answer) default configuration options with the following exception:

Rate at 19.2K

Set ports 1, 2, 3, and 4 to 4800.

3920 B Use Sync Leased (Originate) default configuration options with the following exceptions:

TX Clock Source

Set to RXC_Loop.

Rate at 19.2K

Set ports 1, 2, 3, and 4 to 4800.

Port TXC Source

Set port 4 to External.

3910 A Use TMp (Control) default configuration options with the following exceptions:

TX Clock Source

Set to External.

LeasedLine Rate

Set to 4800(TMp).

3910 B Use TMp (Trib) default configuration options with the following exceptions:

TX Clock Source

Set to RXC_Loop.

LeasedLine Rate

Set to 4800(TMp).

3910 C Use TMp (Trib) default configuration options with the following exceptions:

TX Clock Source

Set to RXC_Loop.

LeasedLine Rate

Set to 4800(TMp).

Cables

Cable 1 Use a standard, customer-supplied, EIA-232-D/V.24 cable with a DB-25-P (plug) connector at one end to attach to the modem. Attach this to the connector labeled DTE1, 2, 3, or 4.

Cable 2 Use part number 125-0053-1431 (an 8-position, 8-wire modular cord that is supplied with the modem). Attach this to the connector labeled LEASED.

Cable 5 Use part number 818-2759-0111 or an equivalent customer-supplied, EIA-232-D/V.24 crossover cable with DB-25-P (plug) connectors on both ends to attach to the modems. (See Appendix C for pin assignments.)

G-8

November 1996

3910-A2-GN32-30

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Paradyne 3910 operation manual Rate at 19.2K Set ports 1, 2, 3, and 4 to
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