Backplane Description; Mcias 1610 Backplane - Motorola McIAS 1610 Series System Manual

1.3.3

Backplane Description

The exterior backplane which is located at the rear of the McIAS 1610 unit consists
of screw terminals, fuses, and several different types of connectors. See Figure 1-3
below.
Five screw terminals located in the upper left corner of the exterior backplane provide
the following power connections: Signal Ground, Signal Battery, Frame, -48v Return
and -48v Negative Supply. Refer to Section 2.4 for a detailed description of each
connection.
Three fuses are also located in the upper left section. F1, the main fuse, is 3 amps.
When -48v system power is applied, it goes directly to the power supply through this
fuse. F2, the signal battery fuse, is 1 amp. F3, the fuse that provides power to the
SCSI terminator, is 1 amp.
Backplane Connector Descriptions (functions dependent on McIAS AppSoft Module)
! ! Serial Ports
McIAS 1610/68:
McIAS 1610/IP:
. .
Fuse
F3
P3
.
5.25 "
P1
SCSI
Terminator
Serial Ports
Local Console (P1)
Modem (P2)
SMDI, if installed, and/or printer (P3 and/or P4, interchangeably)
Console (P1)
Modem (P2)
Local Terminal (P3)
SMDI, if installed (P4)
F2
F1
.......
........
J10
..................
P4 .............
.......
J9 ........
.......
P2
J8 ........
......................... .........................
.........................
J5
Alarm Board
Connector
Telephony Interface
Board Connectors
Figure 1-3

McIAS 1610 Backplane

17 "
Ethernet Transceiver
Fuses
.........................
.........................
J7
.........................
.........................
J6
.........................
.........................
J4
.........................
.........................
J3
Analog
Digital
Telephony Interface
Board Connectors
7
.
J12
...............
.................
Parallel
Port