800-357-104-01, Revision 01
16
September 29, 2000
HMS-357 List 4 and List 5
OC-3
I
NSTALLING
I
NTERFACE
C
ABLES
—OC-3 (D
UAL
S
UBTENDED
STS-1
M
ULTIPLEXERS
)
Prior to installing the interface cable, you must install a DS3 Module in the Module B location (see
I
NSTALLING
THE
DS3 LIU, M
ODULE
B
The DS3 LIU Module B must be installed with the Wideband System 3190 for subtending STS-1 systems from
an OC-3 multiplexer.
Figure 10.
Installing the DS3 LIU, Module B
This procedure requires the installation of an HXU-369 multiplexer to complete. See
HXU-369 Multiplexer Card” on page 52
prior to starting this cable installation.
Step
Procedure
Installer Check
ü
ü
ü
ü
Whenever installing or removing units from the HMS-357 chassis, be sure to wear an
antistatic wrist strap and connect it to the ESD strap input above the HMU slot on the
inside of the chassis.
1
Align the guide pins from the DS3 LIU with the guide holes in the chassis (see
H
2
Press the module into the P10 and P9 connectors until firmly seated.
H
3
Tighten the two locking screws using a #2 Phillips or slotted screwdriver.
H
Installer Signature
?
?
?
?
Date
RT
-48
-48
RT
FG
N
MODULE A
MODULE B
CAU
TION
:
VOLTA
GES
UP TO
200
VDC
MAY
BE P
RES
ENT
UND
ER T
HIS
COV
ER
!
INP
UT
PO
W
ER
: -4
8V,
30A
M
AX
!
P10
P9
Alignment pin
Alignment pin
P10
P9
DS3
IN
OUT
DS3
J1
J2
ESD strap input