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Cisco ONS 15454 DWDM Reference Manual, R8.5
78-18343-02
Chapter 2      Common Control Cards
2.3.5    Power-Level Indicators
2.3.5 Power-Level Indicators
Table 2-6 describes the two power-level LEDs on the TCC2P faceplate.
Note For ONS 15454 ETSI shelf, the power-level LEDs are either green or red. The LED is green when the 
voltage on supply inputs is between the extremely low battery voltage and extremely high battery voltage 
thresholds. The LED is red when the voltage on supply inputs is above extremely high battery voltage 
or below extremely low battery voltage thresholds. 
2.4 AIC-I Card
Note For hardware specifications, see the “A.3.3  AIC-I Card Specifications” section on page A-9.
The optional Alarm Interface Controller–International (AIC-I) card provides customer-defined 
(environmental) alarms and controls and supports local and express orderwire. It provides 
12 customer-defined input and 4 customer-defined input/output contacts. The physical connections are 
via the backplane wire-wrap pin terminals. If you use the additional alarm expansion panel (AEP), the 
AIC-I card can support up to 32 inputs and 16 outputs, which are connected on the AEP connectors. The 
AEP is compatible with ANSI shelves only. A power monitoring function monitors the supply voltage 
(–48 VDC). Figure 2-3 shows the AIC-I faceplate and a block diagram of the card. 
Table 2-6 TCC2P Power-Level Indicators 
Power-Level LEDs Definition
Green/Amber/Red 
PWR A LED
The PWR A LED is green when the voltage on supply input A is between the 
low battery voltage (LWBATVG) and high battery voltage (HIBATVG) 
thresholds. The LED is amber when the voltage on supply input A is between 
the high battery voltage and extremely high battery voltage (EHIBATVG) 
thresholds or between the low battery voltage and extremely low battery 
voltage (ELWBATVG) 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/Amber/Red 
PWR B LED 
The PWR B LED is green when the voltage on supply input B is between the 
low battery voltage and high battery voltage thresholds. The LED is amber 
when the voltage on supply input B is between the high battery voltage and 
extremely high battery voltage thresholds or between the low battery voltage 
and extremely low battery voltage 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.