Sbc/Alarm Transition Board - Motorola McIAS 1610 Series System Manual

Attached to the rear of the SBC is the Alarm Transition board as indicated in Figure
1-2 below.
Alarm Transition Board
Single Board Computer (SBC) Assembly
Figure 1-2

SBC/Alarm Transition Board

(P/N 43313970)
There are two internal connectors at the rear of the Alarm Transition board which are
inserted into a set of connectors on the interior backplane when the SBC/Alarm
Transition board is positioned in Slot 5 of the card file.
The Alarm Transition board provides an alarm circuit interface to the switch consisting
of dry contact relays which have been divided into major and minor alarms. The
contact relays are accessed via a 50-pin trunk interface connector (J5) located on the
exterior backplane.
Depending on the type of SBC board installed, the LEDs and switches located on the
board's outside panel will vary as described earlier in this section.
5