Cisco Cisco ONS 15454 SONET Multiservice Provisioning Platform (MSPP) Guía De Diseño

OL-4556-01

 

241

Visual and audible alarms are typically wired to trigger an alarm light or bell at a central alarm 
collection point when the corresponding contacts are closed.  You can use the Alarm Cutoff pins 
to activate a remote ACO for audible alarms.  You can also activate the ACO function by pressing 
the ACO button on the TCC+/TCC2 card faceplate.  The ACO function clears all audible alarm 
indications.  After clearing the audible alarm indication, the alarm is still present and viewable in 
the Alarms tab in CTC. 
 

 
The optional ONS 15454 alarm expansion panel (AEP) can be used with the Alarm Interface 
Controller card (AIC-I) card to provide an additional 48 dry alarm contacts for the ONS 15454, 32 
of which are inputs and 16 are outputs.  The AEP is a printed circuit board assembly that is 
installed on the backplane. 
 
Each AEP alarm input port has provisionable label and severity.  The alarm inputs have 
optocoupler isolation. They have one common 32VDC output and a maximum of 2 mA per input.  
Each opto metal oxide semiconductor (MOS) alarm output can operate by definable alarm 
condition, a maximum open circuit voltage of 60 VDC, anda maximum current of 100 mA. 
 
Table 7-7 shows the wire-wrap pins and corresponding signals on the AIC-I and AEP. 
 

TIP_1 GND  AEP_GND 

7 

TIP_2 AE_+5V AEP_+5V 

8 

TIP_3 VBAT- VBAT- 9 
TIP_4 

VB+ VB+ 10 

TIP_6 

AE_CLK_P AE_CLK_P 6 

TIP_7 

AE_CLK_N AE_CLK_N 5 

TIP_8 AE_DIN_P 

AE_DOUT_P 

4 

TIP_9 AE_DIN_N 

AE_DOUT_P 

3 

TIP_10 AE_DOUT_P 

AE_DIN_P 

2 

TIP_11 AE_DOUT_N 

AE_DIN_N 

1