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COMSPHERE 3900 Series Modems
G-10 September 1998 3910-A2-GN32-40
3910
D,F,H
Use Sync Leased (Answer) default configuration options with the following
exceptions:
TX Clock Source Set to RXC_Loop.
3910 E,G Use Sync Leased (Answer) default configuration options with the following
exceptions:
Diagnostic Connection Set to Modem (DC).
Network Position Set to Control.
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.)
Cable 6 Use part number 125-0040-0031 (a 6-position, 6-wire modular cord). Attach this to
the CCIN/DCOUT port of the 3600 Hubbing device.
Cable 7 Use part number 125-0053-1431 (an 8-position, 8-wire modular cord). Attach this
to the CCIN/DCOUT port of one 3600 Hubbing device and to the CCOUT/DCIN
port of the second device.
Adapter
871A Use part number 002-0026-0031 (Feature number 4400-F1-590).