Digicom COMSPHERE 3911 User Manual
COMSPHERE 3900 Series Modems
G-4
September 1998
3910-A2-GN32-40
Point-to-Point with Automatic Dial Backup
Figure G-3 shows a sample configuration for point-to-point applications with automatic dial
backup.
backup.
Cable 1
Cable 1
Cable 2
Cable 2
Leased
19200(V32t)
19200(V32t)
TX
TX
Cable 3
Cable 3
Dial
DTE
(Sync)
DTE
(Sync)
3910
A
3910
B
Figure G-3. Sample Configuration — Point-to-Point with Automatic Dial Backup
Configuration Options
3910 A
Use Sync Leased (Answer) default configuration options with the following
exception:
exception:
Auto Dial Back
Set to Enable.
3910 B
Use Sync Leased (Originate) default configuration options with the following
exception:
exception:
Auto Dial Back
Set to Enable.
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.
connector at one end to attach to the modem. Attach this to the connector labeled
DTE1.
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.
supplied with the modem). Attach this to the connector labeled LEASED.
Cable 3
Use part number 125-0067-0031 (a 6-position, 4-wire modular cord that is
supplied with the modem). Attach this to the connector labeled DIAL.
supplied with the modem). Attach this to the connector labeled DIAL.