ADTRAN HDSL 3192 HTU-C Installation And Maintenance Practice page 48

HDSL 3192 HTU-C Installation and Maintenance Practice
Table A-1. HDSL Loopback Control Codes (Continued)
Function
Activation (HTU-C)
Source: Customer
Activation (HTU-C)
Source: Customer
Activation (HTU-R)
Source: Network
Activation (HTU-R)
Source: Network
Activation (HTU-R)
Source: Customer
Activation (HTU-R)
Source: Customer
Activation (HTU-R)
Source: Network or
Customer
Activation (HRE-1)
Source: Network or
Customer
Activation (HRE-2)
Source: Network or
Customer
Query (All Elements)
Source: Network
Disable Loopback
Timeout Source:
Network
Disable Span Power
Source: Network
A-4
Code (Binary/Hex)
1111110 (6 in 7)
0111 1111 0001 1110/
3F1E
1111 1111 0000 0010/
FF02
1110000 (3 in 7)
1111100 (5 in 7)
0011 1111 0000 0010/
3F02
1100 0111 0100 0010/
C742
1100 0111 0100 0001/
C741
1100 0111 0101 0100/
C754
1101 0101 1101 0101/
D5D5
1101 0101 1101 0110/
D5D6
0110 0111 0110 0111/
6767
Response
Signal sent in-band. HTU-C loops back the T1 data
to the customer equipment.
Signal sent in-band. HTU-C loops back the T1 data
to the customer equipment.
Signal sent in-band. HTU-R loops back the T1 data
to the network equipment.
Signal sent in-band. HTU-R loops back the T1 data
to the network equipment.
Signal sent in-band. HTU-R loops back the T1 data
to the customer equipment.
Signal sent in-band. HTU-R loops back the T1 data
to the customer equipment.
Signal sent in-band. HTU-R loops back the T1 data
to the source direction. Sends 20 bit errors every 10
seconds.
Signal sent in-band. HRE-1 loops back the T1 data
to the source direction. Sends 10 bit errors every 20
seconds.
Signal sent in-band. HRE-2 loops back the T1 data
to the source direction. Sends 200 bit errors every
20 seconds.
Signal sent in-band. Any unit that is in network
loopback injects bit errors into the data looped to
the network equipment. The element closest to the
network that is in loopback injects the errors.
• HTU-C that is in a network loopback injects
231 bit errors every 20 seconds.
• HTU-R that is in a network loopback injects
20 bit errors every 10 seconds.
• HRE-1 that is in a network loopback injects
10 bit errors every 20 seconds.
• HRE-2 that is in a network loopback injects
200 bit errors every 20 seconds.
Signal sent in-band. Loopback Timeout is disabled
as long as any element is in loopback or armed.
Signal sent in-band. Span power is disabled until
this pattern is removed.
61247004L1-5A