1-8
Cisco ONS 15327 User Documentation, R3.3
June 2002
Chapter 1 Hardware Installation
Fan-Tray Assembly Installation
Procedure: Mount Multiple ONS 15327s in a Rack
Step 1
Install the fuse and alarm panel at the top.
Step 2
Mount the first ONS 15327 directly below the fuse and alarm panel.
Step 3
Repeat the procedure with the remainder of the ONS 15327s.
1.4 Fan-Tray Assembly Installation
Facing the front of the ONS 15327, the fan-tray assembly is located on the right-hand side. The fan tray
is a removable drawer that holds fans and fan-control circuitry for the ONS 15327. After you install the
fan tray, you should not need to remove it unless a fan failure occurs or you need to replace, inspect or
clean the fan-tray air filter.
The fan-tray assembly has an air filter on the right side of the fan tray that you can install and remove
by hand. Remove and visually inspect this filter every 30 days. For inspection procedures, refer to the
“Air Filter Inspection and Replacement” section on page 12-2
. Spare filters should be kept in stock. If
you are replacing the air filter, you must first move aside the cables that cross in front of it. You must
install the air filter with its metal bracing against the fan tray.
Figure 1-4
Removing or replacing the fan-tray air filter
Caution
Do not force the fan-tray assembly into place while installing it. Forcing the fan-tray assembly into place
can damage the connectors on the fan tray and/or the connectors on the back panel of the shelf assembly.
Procedure: Install the Fan-Tray Assembly
Step 1
If cables are installed, move them away from the fan tray slot.
CISCO ONS 15327
OPTICAL NET
WORKING SYST
EM
FAN
STATUS
1
2
3
4
E10/100-T
FAIL
ACT
SF
1
2
3
4
E10/100-T
FAIL
ACT
SF
ACO
LAN
CRAFT
XTC-28-3
LAMP
TEST
FAIL
ACT/STBY
SYNC
ACO
DS3 SF
DS1 SF
PWR A
PWR B
CRIT
MAJ
MIN
REM
ACO
LAN
CRAFT
XTC-28-3
LAMP
TEST
FAIL
ACT/STBY
SYNC
ACO
DS3 SF
DS1 SF
PWR A
PWR B
CRIT
MAJ
MIN
REM
BITS
MIC B
ALARM
DS1 (15-28)
-48V RET
PWR B
Rx 1
Rx 2
Rx 3
BITS
MIC A
ALARM
DS1 (15-28)
-48V RET
PWR B
Tx 1
Tx 2
Tx 3
OC-12
IR 1310
FAIL
ACT
SF
OC-12
IR 1310
FAIL
ACT
SF
47874
4
3
2
1
Summary of Contents for ONS 15327
Page 22: ...Contents xxii Cisco ONS 15327 User Documentation June 2002 I N D E X ...
Page 30: ...Figures xxviii Cisco ONS 15327 User Documentation June 2002 ...
Page 44: ...Procedures xlii Cisco ONS 15454 Installation and Operations Guide R3 2 June 2002 ...
Page 540: ...Glossary GL 16 Cisco ONS 15327 User Documentation R3 3 June 2002 ...