61200.055L1-1C
DSX-1 Passthru Option Module
15
Chapter 3. Operation
In-band Loopback (INBAND LPBA CK)
In-band Loopback sets the Passthru to accept or reject
in-band loopup and loopdown codes (per ANSI T1.403
specification) which may be sent to the card over the
DSX-1 interface. This loopback is a line loopback.
Clock Source
Clock Source selects the clock source for transmission
toward the PBX or device connected to the Passthru.
Table 3-A
Port Configuration Parameters
Port Utility (POR
T UTIL)
Port Utility, a submenu of the TSU 100/600 main menu
item Utilities (UTIL) displays the current software
information for each port installed in the unit. This
information is required when requesting assistance from
ADTRAN Customer Service or when updates are needed.
When Port Utility is displayed, place the cursor on it and
press
Enter
to display the first available port.
Scroll to display 1.1 DSX1 PT, and press
Enter
to
activate. The unit displays the option card name and the
software version installed. Press
Cancel
to exit or select
another port.
PARAMETER CHOICES
D4, ESF
AMI, B8ZS
Enable, Disable
1-110, 110-220, 220-330,
330-440, 440-550, 550-655, >655
Accept, Reject
Network (NI), Secondary (SI)
MENU ITEM
Format
Code
Yellow Alarm
Line Length
In-band Loopback
Clock Source
