Datasheet

Table Of Contents
2-9
Cisco ONS 15454 SDH Reference Manual, R7.0
October 2008
Chapter 2 Common Control Cards
2.2.4 Power-Level Indicators
2.2.4 Power-Level Indicators
Table 2-10 describes the two power-level LEDs on the TCC2 faceplate.
2.3 TCC2P Card
Note For TCC2P card specifications, see the A.4.2 TCC2P Card Specifications” section on page A-10.
The TCC2P card, which requires Software R4.0 or later, is an enhanced version of the TCC2 card. The
primary enhancements are Ethernet security features in R5.0 and 64kHz+8kHz clocking in R6.0.
The TCC2P card performs system initialization, provisioning, alarm reporting, maintenance,
diagnostics, IP address detection/resolution, SDH regeneration section overhead (RSOH) and multiplex
section overhead (MSOH) DCC/GCC termination, and system fault detection for the ONS 15454. The
TCC2P also ensures that the system maintains Stratum 3 (ITU-T G.812) timing requirements. It
monitors the supply voltage of the system.
Note The LAN interface of the TCC2P card meets the standard Ethernet specifications by supporting a cable
length of 328 ft (100 m) at temperatures from 32 to 149 degrees Fahrenheit (0 to 65 degrees Celsius).
The interfaces can operate with a cable length of 32.8 ft (10 m) maximum at temperatures from –40 to
32 degrees Fahrenheit (–40 to 0 degrees Celsius).
Table 2-10 TCC2 Power-Level Indicators
Power-Level LEDs Definition
Green/Red PWR A LED The PWR A LED is green when the voltage on supply input A is between the
extremely low battery voltage (ELWBATVG) and extremely high battery
voltage (EHIBATVG) thresholds. The LED is red when the voltage on
supply input A is above extremely high battery voltage or below extremely
low battery voltage thresholds.
Green/Red PWR B LED The PWR B LED is green when the voltage on supply input B is between the
extremely low battery voltage (ELWBATVG) and extremely high battery
voltage (EHIBATVG) thresholds. The LED is red when the voltage on
supply input B is above extremely high battery voltage or below extremely
low battery voltage thresholds.