I/O Module Wire-Wrap Pins; Figure 1-22 I/O Module Wire-Wrap Pins Close-Up - Cisco 6260 Installation Manual

Cisco 6260 System Overview

1.2.4.4 I/O Module Wire-Wrap Pins

Located on the right side of each I/O module faceplate are 36 wire-wrap pins that support
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Both the alarm relay and the BITS clock connections are optional. If you connect the alarm relays, they
transmit critical, major, and minor alarms to a separate, external alarm device. The alarm device uses a
bell, light, or some other signal to alert service personnel to the change in system status. If you connect
the BITS interface, the Cisco 6260 can receive a clock signal from an E1 line.
Figure 1-22

Figure 1-22 I/O Module Wire-Wrap Pins Close-Up

These pins support the following items:
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Each of the wire-wrap pins is connected to the NI-2 cards in the Cisco 6260 chassis; however, only one
NI-2 card manages the alarms. The ACO switch on the NI-2 card faceplate shuts off the audible alarms
generated by the Cisco 6260 system software.
One of the alarm relay functions provided by the wire-wrap connector is an ACO circuit that you can wire to
your external alarm device. To use this feature, connect the alarm device so that it can close the contact
between pin 5 and pin 6 in row 5.
The connector also provides contacts for the following features, all of which can be used separately:
Cisco 6260 Hardware Installation Guide
1-44
Central office alarm relay interfaces (visual and audible critical, major, and minor)
BITS clock input circuits
Wire-wrap and socket-type connections
shows a close-up of the wire-wrap pins.
Visual critical alarm
Visual major alarm
Visual minor alarm
Audible critical alarm
Audible major alarm
Audible minor alarm
Power module alarms
Remote alarm cut off
Reserved (several pins are reserved for future specification)
Chapter 1 Product Overview
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