user manual
Table Of Contents
- Cisco ONS 15454 SDH Reference Manual
- Contents
- About this Guide
- Shelf and FMEC Hardware
- Common Control Cards
- Electrical Cards
- Optical Cards
- Ethernet Cards
- Storage Access Networking Cards
- Card Protection
- Cisco Transport Controller Operation
- Security and Timing
- Circuits and Tunnels
- SDH Topologies and Upgrades
- CTC Network Connectivity
- Alarm Monitoring and Management
- Ethernet Operation
- Hardware Specifications
- A.1 Shelf Specifications
- A.2 SFP Specifications
- A.3 General Card Specifications
- A.4 Common Control Card Specifications
- A.5 Electrical Card and FMEC Specifications
- A.5.1 E1-N-14 Card Specifications
- A.5.2 E1-42 Card Specifications
- A.5.3 E3-12 Card Specifications
- A.5.4 DS3i-N-12 Card Specifications
- A.5.5 STM1E-12 Card Specifications
- A.5.6 BLANK Card
- A.5.7 FMEC-E1 Specifications
- A.5.8 FMEC-DS1/E1 Card Specifications
- A.5.9 FMEC E1-120NP Card Specifications
- A.5.10 FMEC E1-120PROA Card Specifications
- A.5.11 FMEC E1-120PROB Card Specifications
- A.5.12 E1-75/120 Impedance Conversion Panel Specifications
- A.5.13 FMEC-E3/DS3 Card Specifications
- A.5.14 FMEC STM1E 1:1 Card Specifications
- A.5.15 FMEC-BLANK Card Specifications
- A.5.16 MIC-A/P Card Specifications
- A.5.17 MIC-C/T/P Card Specifications
- A.6 Optical Card Specifications
- A.6.1 OC3 IR 4/STM1 SH 1310 Card Specifications
- A.6.2 OC3 IR/STM1 SH 1310-8 Card Specifications
- A.6.3 OC12 IR/STM4 SH 1310 Card Specifications
- A.6.4 OC12 LR/STM4 LH 1310 Card Specifications
- A.6.5 OC12 LR/STM4 LH 1550 Card Specifications
- A.6.6 OC12 IR/STM4 SH 1310-4 Card Specifications
- A.6.7 OC48 IR/STM16 SH AS 1310 Card Specifications
- A.6.8 OC48 LR/STM16 LH AS 1550 Card Specifications
- A.6.9 OC48 ELR/STM16 EH 100 GHz Card Specifications
- A.6.10 OC192 SR/STM64 IO 1310 Card Specifications
- A.6.11 OC192 IR/STM64 SH 1550 Card Specifications
- A.6.12 OC192 LR/STM64 LH 1550 Card Specifications
- A.6.13 OC192 LR/STM64 LH ITU 15xx.xx Card Specifications
- A.7 Ethernet Card Specifications
- A.8 Storage Access Networking Card Specifications
- Administrative and Service States
- Network Element Defaults
- Index
1-13
Cisco ONS 15454 SDH Reference Manual, R5.0
April 2008
Chapter 1 Shelf and FMEC Hardware
1.9 Fan-Tray Assembly
1.9 Fan-Tray Assembly
The fan-tray assembly is located at the bottom of the ONS 15454 SDH. After you install the fan-tray
assembly, you only need to open the drawer if a fan fails, or if you need to replace or clean the fan-tray
air filter. Do not operate an ONS 15454 SDH without a fan-tray air filter. Refer to the “Maintain the
Node” chapter in the Cisco ONS 15454 SDH Procedure Guide for information about cleaning and
maintaining the fan-tray air filter.
The fan-tray assembly is a removable drawer that holds fans and fan-control circuitry for the
ONS 15454 SDH. Cisco recommends removing the front door of the chassis when removing or installing
the fan-tray assembly. The front of the fan-tray assembly has an LCD screen that provides slot and
port-level information for all ONS 15454 SDH card slots, including the number of critical, major, and
minor alarms. For STM-N cards, you can use the LCD to determine if a port is in working or protect
mode and is active or standby. It also displays whether the software load is SONET or SDH and the
software version number.
The temperature measured by the TCC2/TCC2P sensors is displayed on the LCD screen.
See Figure 1-9 for the position of the fan tray assembly.
Figure 1-9 Position of the Fan-Tray Assembly
Caution Do not operate an ONS 15454 SDH without a fan-tray air filter. A fan-tray air filter is mandatory.
61236
FAN FAIL
CRIT
MAJ
MIN
Fan tray
assembly
LCD