ADTRAN Total Access 3000 - Page 27

6TASYS101-1E
TOTAL ACCESS 3000/3010
SYS-101
Page 21 of 46
Total Access
®
3000/3010 System Manual
© 2003, ADTRAN, Inc.
The HTU-C has two span powering modes, and provides less than -140V for span
powering both a low voltage HTU-R and a low voltage HRE. For span powering two
low-voltage HREs and a low-voltage HTU-R, the HTU-C provides -190 Vdc.
The Total Access HTU-C provides comprehensive user-friendly Operation,
Administration, Maintenance, and Provisioning (OAM&P) circuit information for the
entire HDSL loop.
Built-in protection switching in the 1181106L5 HTU-C allows a service provider to
provision an HDSL circuit with a second HDSL circuit in hot-standby for redundancy
of both of the HDSL CO and remote line cards and copper facilities. The 1181106L4
does not contain built-in protection switching.
Figure 10. HTU-C Faceplates
LP1
DLOS RLOS
STAT HLOS
CODE
HTU-C
1181106L4
LBK LINE
LP2
HCRC 1
HCRC 2
ARM
(YEL)
LBK
(GRN)
B8ZS
TX
DSX
EQ
RX
TX
DSX
MON
RX
LP1
DLOS RLOS
STAT HLOS
CODE
HTU-C
1181106L5
LBK LINE
LP2
HCRC 1
HCRC 2
ARM
(YEL)
LBK
(GRN)
B8ZS
TX
DSX
EQ
RX
TX
DSX
MON
RX
H
L
S
S
PROT
GRN = ACTV
YEL = STBY
RED = UNAV
OFF = DIS