Appendix B
Command Parameter Definitions
Parameter listing
182
CT-650 Command-Line Reference Guide
Release 9.4
The signal flow used for splitting circuits The available values
depend on the type of circuit and how it was split with the
split_mode parameter.
–
Test_Code
Transmits a test code signal (1C hex) from the
RTU. The split completely severs the continuity of the line.
–
Local_Loopback
Loops the received signal from the RTU
receiver to the RTU transmitter; the RTU is configured in a test
loopback (TLB) mode. The TLB enables the RTU to inject errors
into the signal. The DS0 split completely severs the continuity of
the line and loops each side of the TAP.
–
Idle_Code(1111)
Transmits a framed idle signal from the
RTU.
–
Transparent
Loops the received signal from the RTU receiver
to the RTU transmitter; the RTU is configured in a test loopback
(TLB) mode.
The format of the loop code signal:
–
DS1
Selects the DS1 loop codes to be transmitted in the
selected DS1 channel within the DS3 signal. To issue a DS1
FEAC loop code, set the
Monitor
command framing format for
C-bit
framing. To issue a DS1 in-band loop code, set the
DS3_Measure
command
ds3_signal_format
for
Muxed
,
and the
ds1_framing_format
for
T1ESF
or
T1D4
.
–
DS3
Selects the DS3 loop codes to be transmitted in the DS3
signal. To issue a DS3 loop code, set the
Monitor
command
framing_format
for
C-bit
framing.
The signaling bits sent to the selected or connected side when split-
ting a VF circuit. Type two digits for SF framing, or four digits for
ESF framing.
Slot in which the RTU is installed. The typical range for slot num-
bers is 1–15 for the 650 and 1–6 for the 650-S.
Table 8
Command-line parameter definitions (Continued)
Parameter
Definition
Summary of Contents for CT-650
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