Appendix C
Test Patterns and Loop Codes
Loop codes
208
CT-650 Command-Line Reference Guide
Release 9.4
CSU <ft1_chan>
<0-8_rptrs>
b
Selects DS0A latching Customer Service Unit loop codes for specified
channel. Include number of repeaters between the test head and CSU/
Repeater. This loopcode will loop CSUs and Repeaters.
OCU <ft1_chan>
Selects DS0A latching Office Channel Unit loop codes for specified
channel.
V.54 <ft1_chan>|All
Selects latching V.54 loop codes for specified channel. If All is
selected, the V.54 loopcode is transmitted across all channels of the
fractional bandwidth.
a. For looping HDSL HTU-R, HTU-C, and Doublers, also transmits an arming code of 11000 and a disarming code
of 11100.
b. The CSU and OCU commands send DDS DS0A loopcodes, not the inband DS1 codes (smart jack).
Table 24
Loop codes (Continued)
Code
Description
Summary of Contents for CT-650
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