Model 3551 Dsu Jumper Straps - Paradyne COMSPHERE 3550 Series User Manual

COMSPHERE 3550 Series Data Service Units
Strap
Designation Jumper Strap
J12
J13
J20
J21
3-4
Table 3-2

Model 3551 DSU Jumper Straps

State of
Left V.35 Test Mode Indication:
Left — Enables V.35 Test Mode Indication (Pins 1 and 2). This is
the factory default.
Right — Disables V.35 Test Mode Indication (Pins 2 and 3).
Left EIA-232-D Test Mode Indication:
Left — Enables EIA-232-D Test Mode Indication
(Pins 1 and 2). This is the factory default.
Right — Disables EIA-232-D Test Mode Indication
(Pins 2 and 3).
Left Alarm Monitoring (used with the – 48 Vdc Central Office Power Unit):
Left — Disables the – 48 Vdc alarm monitoring function
(Pins 1 and 2). This is the factory default.
Right — Enables the – 48 Vdc alarm monitoring function
(Pins 2 and 3); the NMS adapter cable is being used for alarm
monitoring.
Right Alarm Monitoring (used with the – 48 Vdc Central Office Power Unit):
Left — Enables control of alarm monitoring via the NMS adapter
cable (Pins 1 and 2); the NMS adapter cable is being used for alarm
monitoring.
Right — Disables control of alarm monitoring via the NMS adapter
cable (Pins 2 and 3); a standard EIA-232 cable or the NMS adapter
cable is being used for the diagnostic channel. This is the factory
default.
July 1999
Function
3550-A2-GB20-40