User Guide
DEFINITY Enterprise Communications Server Release 5
Maintenance and Test for R5vs/si 
555-230-123 
Issue 1
April 1997
Maintenance Commands and Trouble-Clearing Aids 
Page 8-568test ds1-loop 
8
For the following output example, the command entered was "test data-module 
300".
Feature Interactions
None.
test ds1-loop
test ds1-loop - For TN464F or TN767E or later suffix DS1 Interface circuit packs, 
this command is used for loopback and one-way span testing of the DS1 span.
Synopsis
test ds1-loop location [ cpe-loopback-jack-test-begin [number-of-bits bit-pattern] 
| far-csu-loopback-test-begin | one-way-span-test-begin | 
end-loopback/span-test | inject-single-bit-error | ds1/csu-loopback-tests]
Permissions
Logins with the following service levels may execute this command: system 
technician, inads, init, super-user, or logins with Maintain Switch Circuit Packs 
permissions enabled.
Test No The actual test that is being executed.
Result An indicator as to whether the test failed, passed, aborted or no 
hardware was available (no board).
Error Code A numerical description of why the test failed or was aborted.
 test data-module 300
 TEST RESULTS
 Port Maintenance Name Alt. Name Test No. Result Error Code
 01C1103 PDMODULE 17 PASS
 Command successfully completed










