LTPH-SM-1052-04
Introduction
HMS-358 List 5 and List 6
July 14, 2002
3
The Wideband 3190 system (with a full complement of remote equipment) can be configured with up to six
chassis (up to 672 lines) in a 7-foot rack and meets NEBS requirements for CO equipment.
The HMS-358 supports 1+N protection switching at the customer interface and provides facility and equipment
protection.
Figure 2.
Outside Plant Service Model
DACS — Digital Access Cross-connect System
NID — Network Interface Device
DS3 — Digital Signal 3
PBX — Private Branch Exchange
DSU/CSU — Digital Service Unit/Channel Service Unit
PF — Protection Frame
MDF — Main Distribution Frame
STS-1 — Synchronous Transport Signal 1
Implementation of DS1 protection switching in the HMS-358 requires two HXU-358 multiplexers
(software version 1.04 or higher) and an HMU-319 List 7A or List 7C management unit (software
version 3.06 or higher). The designated protection line must be comprised of an HLU-316 List 6
or an H2TU-C-319 List 6 line unit and an HRU-402 List 6 or an H2TU-R-402 List 6 remote unit. The
remote enclosure must be an HRE-206 List 1 equipped with a PSC-606 List 1 protection
switching controller. For information about implementing protection switching, refer to the
documentation for the PSC-606 List 1, document number LTPH-TP-1006-xx.
PF MDF
DS3
DACS
Office B
Office A
Office C
DS1
PairGain
HXU-358
TEST
XMT
RS232
L
F
LT
A
B
N
AC
T
C
R
M
J
M
N
F
E
P
W
R
L
B
RCV
PairGain
HXU-358
TEST
XMT
RS232
L
F
LT
A
B
N
AC
T
C
R
M
J
M
N
F
E
P
W
R
L
B
RCV
S
E
L
M
O
D
E
SETUP
STATUS
R
S
2
3
2
SOLITAIRE
HiGain
O
U
T
I
N
B
R
G
B
R
G
L
I
N
E
L
I
N
E
H
2
T
U
*
C
3
1
9
H
D
S
L
2
L
1
HiGain MGT UNIT
HMU-319
ACO
A
L
M
MINOR
MAJOR
CRITICAL
EXT COMM
FAIL
POWER
R
S
2
3
2
L
NID 1
PBX
DSU/CSU
NID 28
Wideband 3190
STS-1
Outside Plant
