Cables, Point-to-point with automatic dial backup – Paradyne 392xPLUS User Manual

Page 257

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COMSPHERE 392xPlus Modems

G-8

November 1996

3920-A2-GN31-30

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 3

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.)

Point-to-Point with Automatic Dial Backup

Figure G-4 shows a sample configuration for point-to-point applications with automatic dial
backup.

Cable 1

Cable 1

Cable 2

Cable 2

Leased

28800(V34)

28800(V34)

TX

TX

Cable 4

Cable 4

Dial

DTE

(Sync)

3920

Plus

A

3920

Plus

B

DTE

(Sync)

DTE

(Sync)

DTE

(Sync)

DTE

(Sync)

DTE

(Sync)

DTE

(Sync)

DTE

(Sync)

4800

4800

9600

9600

4800

4800

9600

9600

Figure G-4. Sample Configuration — Point-to-Point with Automatic Dial Backup

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