Appendix C
Test Patterns and Loop Codes
Loop codes
CT-650 Command-Line Reference Guide
Release 9.4
207
ESF-PAY
Selects ESF out-of-band payload loop codes. Transmits a loop-up
code of 1111 1111 0010 1000 and a loop-down code of 1111 1111 0100
1100.
R-HTU
Selects in-band DS1 remote HTU loop codes — 3 in 7 (1110000).
C-HTU
Selects in-band DS1 central HTU loop codes — 4 in 7 (1111000).
1-Doubler
Selects in-band DS1 first doubler loop codes — 2 in 6 (110000).
2-Doubler
Selects in-band DS1 second doubler loop codes — 3 in 6 (111000).
R-HTU_Long
a
Selects in-band DS1 remote HTU 16- bit loop codes. Transmits a loop-
up code of 1100 0111 0100 001 and a loop-down code of
1001001110010011.
C-HTU_Long
Selects in-band DS1 central HTU 16- bit loop codes. Transmits a loop-
up code of 1101 0011 1101 0011 and a loop-down code of
1001001110010011.
1-Doubler_Long
Selects in-band DS1 first doubler 16-bit loop codes. Transmits a loop-
up code of 1100 0111 0100 0001 and a loop-down code of
1001001110010011.
2-Doubler_Long
Selects in-band DS1 second doubler 16-bit loop codes. Transmits a
loop-up code of 1100 0111 0101 0100 and a loop down code of
1001001110010011.
CSU/Repeater <0-
8_rptrs>
Selects latching DS0 Customer Service Unit loop codes. Include num-
ber of CSUs or repeaters between the test head and CSU.
NEI <0-1_rptrs>
Selects latching DS0 Network Equipment Interface loop codes. Include
number of repeaters between the test head and NEI.
DSU
Selects latching DS0 Data Service Unit loop codes.
OCU
Selects latching DS0 Office Channel Unit loop codes.
DS0_DP <iteration>
Selects latching DS0 Dataport loop codes. Include number of repeat-
ers between the test head and the dataport.
LSI
Selects latching DS0 Line Side Interface (HL222) loop codes.
V.54
Selects latching DS0 V.54 loop codes.
MJU
Selects a latching Multipoint Junction Unit loopback to loop all MJU
branches and the control leg.
Table 24
Loop codes (Continued)
Code
Description
Содержание CT-650
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Страница 22: ...Contents xxii CT 650 Command Line Reference Guide Release 9 4 ...
Страница 104: ...Chapter 7 DS0 VF Test Commands Description of VF test commands 78 CT 650 Command Line Reference Guide Release 9 4 ...
Страница 108: ...Chapter 8 Batch Files Unavailable commands for batch files 82 CT 650 Command Line Reference Guide Release 9 4 ...
Страница 198: ...Appendix A Test Results Definitions Loopback status information 172 CT 650 Command Line Reference Guide Release 9 4 ...
Страница 240: ...Appendix D Customer Services and Support Training options 214 CT 650 User s Guide Release 9 3 ...
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