Instruction manual

Tests
4-34
Installation, SPM, Maintenance, and Troubleshooting Supplement
Data-Channel Loopback Test
(100 DCD Only)
4
This test takes all the channels assigned to a particular data port and loops
them towards the T1 network. All 1’s are transmitted across the channels
assigned to the data port. To perform this test, you must first busy-out the
module. From your system programming console, use the following sequence
to access the Data-Channel loopback test.
Menu: Maintenance
→Slot→Slot#→Enter→More→Data-Channel
→Data Port 1 or Data Port 2→Enter
Note: Use Back to exit.
Data Terminal Loopback Test
(100 DCD Only)
4
This test loops the data received on one data port to the same data port. All 1’s
are transmitted to the channels assigned to the data port. You do not have to
busy out this module to perform this test. From your system programming
console, use the following sequence to access the Data Terminal loopback test.
Menu: Maintenance
→Slot→Slot#→Enter→More→Data-Terminal
→Data Port 1 or Data Port 2→Enter
Note: Use Back to exit.
Data Port Local Loop Test
(100 DCD Only)
4
This test loops the data port back to the system. A test pattern is generated on
all transmit data channels for the selected port. All receive T1 channels are
monitored by the module to determine if the test pattern is being received back
accurately. To perform this test, you must first busy-out the module. From your
system programming console, use the following sequence to access the Data
Port Local Loop test.
Menu: Maintenance
→Slot→Slot#→Enter→More→Lcal D. Prt→
Data Port 1 or Data Port 2→511, 2047, All ones, or All zeroes