Alarm Contact Connections; Figure 1-43 Ons 15454 Backplane Pinouts - Cisco ONS 15454 Reference Manual

1.16 1.16.1 Alarm Contact Connections

Figure 1-43
1.16.1 Alarm Contact Connections
The alarm pin field supports up to 17 alarm contacts, including four audible alarms, four visual alarms,
one alarm cutoff (ACO), and four user-definable alarm input and output contacts.
Audible alarm contacts are in the LOCAL ALARM AUD pin field and visual contacts are in the LOCAL
ALARM VIS pin field. Both of these alarms are in the LOCAL ALARMS category. User-definable
contacts are in the ENVIR ALARM IN (external alarm) and ENVIR ALARM OUT (external control)
pin fields. These alarms are in the ENVIR ALARMS category; you must have the AIC-I card installed
to use the ENVIR ALARMS. Alarm contacts are Normally Open (N/O), meaning that the system closes
the alarm contacts when the corresponding alarm conditions are present. Each alarm contact consists of
two wire-wrap pins on the shelf assembly backplane. Visual and audible alarm contacts are classified as
critical, major, minor, and remote.
Cisco ONS 15454 Reference Manual, R7.0.1
1-66
ONS 15454 Backplane Pinouts
A B A B A B
1 1 1 1
2 2 2 2
3 3 3 3
4 4 4 4
BITS LAN ENVIR
IN
FG1 FG2 FG3 FG4
Field Pin Function
BITS A1 BITS Output 2 negative (-)
B1 BITS Output 2 positive (+)
A2 BITS Input 2 negative (-)
B2 BITS Input 2 positive (+)
A3 BITS Output 1 negative (-)
B3 BITS Output 1 positive (+)
A4 BITS Input 1 negative (-)
B4 BITS Input 1 positive (+)
LAN Connecting to a hub, or switch
RJ-45 pin 6 RX-
A1
B1 RJ-45 pin 3 RX+
A2 RJ-45 pin 2 TX-
B2
RJ-45 pin 1 TX+
Connecting to a PC/Workstation or router
A1
RJ-45 pin 2 RX-
RJ-45 pin 1 RX+
B1
A2 RJ-45 pin 6 TX-
RJ-45 pin 3 TX+
B2
A1
Alarm input pair number 1: Reports
ENVIR
closure on connected wires.
B1
ALARMS
IN
A2
Alarm input pair number 2: Reports
closure on connected wires.
B2
A3
Alarm input pair number 3: Reports
closure on connected wires.
B3
A4 Alarm input pair number 4: Reports
closure on connected wires.
B4
A B A B A B A
1 1 1
2 2 2
3 3 3
4 4 4
ALARMS ACO X . 25
OUT
FG5 FG6 FG7
Field Pin
A1
ENVIR
ALARMS
B1
OUT
A2
B2
N/O
A3
B3
A4
B4
ACO A1
B1
CRAFT A1
A2
A3
A4
A1
LOCAL
ALARMS
B1
AUD
A2
(Audible)
B2
N/O
A3
B3
A4
B4
A1
LOCAL
ALARMS
B1
VIS
A2
(Visual)
B2
N/O
A3
B3
A4
B4
Figure 1-43 shows alarm pin assignments.
Chapter 1 Shelf and Backplane Hardware
B A A B A
1 1 1
2 2 2
3 3 3
4 4 4
MODEM CRAFT LOCAL ALARMS
VIS AUD
FG8 FG9 FG10
Function
Normally open output pair number 1
Normally open output pair number 2
Normally open output pair number 3
Normally open output pair number 4
Normally open ACO pair
Receive (PC pin #2)
Transmit (PC pin #3)
Ground (PC pin #5)
DTR (PC pin #4)
Alarm output pair number 1: Remote
audible alarm.
Alarm output pair number 2: Critical
audible alarm.
Alarm output pair number 3: Major
audible alarm.
Alarm output pair number 4: Minor
audible alarm.
Alarm output pair number 1: Remote
visual alarm.
Alarm output pair number 2: Critical
visual alarm.
Alarm output pair number 3: Major
visual alarm.
Alarm output pair number 4: Minor
visual alarm.
B A B
1 1
2 2
TBOS
3
4
FG11 FG12
OL-9217-01