Harris Intraplex ACS-160 Series - Power and Alarm Connection Wiring; Table 3-13. MA-215;MA-235-1;MA-235-2;MA-217 B Remote Port Pin Assignments; Table 3-14. Power and Alarm Connectors

ACS-160 Series & STL-160 Series T1 Multiplexer Installation & Operation 3 – Installation & Wiring
Version 2.11, August 2011
3-16 Harris Corporation
Intraplex Products
Table 3-13. MA-215/MA-235-1/MA-235-2/MA-217B Remote Port Pin Assignments
Connector Pin Description
1 RS-485 negative (-)
2 RS-232 transmit
3 Not used
4 RS-232 receive
5 Signal ground
6 RS-485 positive (+)
On a dual terminal or drop and insert multiplexer, each CM-5RB module is controlled from the remote
port on its corresponding module adapter, so each must be connected separately. For a dial-up
connection, you can use a code-operated switch to control both CM-5RB modules via one dial-up line.
3.6.5 Power and Alarm Connection Wiring
Table 3-14 defines the power and alarm terminals on a 3RU shelf and lists the equivalent connection
points on a 1RU shelf (these equivalents are pins of the DB-15 alarms connector). Figures 3-16, 3-17,
and 3-18 show the typical power connections to a 3RU shelf. Figure 3-19 shows the typical
connections to a 1RU shelf.
Table 3-14. Power and Alarm Connectors
Terminal
on 3RU
Shelf
1RU
Shelf
Pins* Description
GND screw Pin 13 Chassis GROUND
SIG BAT Pin 15 -48VDC SIGNALING BATTERY input. For connection to an external signaling voltage source
when this is needed by one or more channel modules. This input may also be connected to
an external loop current generator.
Warning: This voltage source must be externally fused or current limited.
+BAT A None Primary battery (+DC power output, when the shelf is DC powered). May be used when
connecting a second equipment shelf to the same DC power source. This terminal, with -BAT
A, serve as the primary connections for a DC power supply.
-BAT A None Primary battery (-DC power output, when the shelf is DC powered). May be used when
connecting a second equipment shelf to the same DC power source. Also, normally jumpered
to SIG BAT when the DC power voltage is the same as the signaling voltage.
+BAT B None Secondary battery (+DC power input) This terminal, with -BAT B, serve as the secondary
connections for a DC power supply.
-BAT B None Secondary battery (-DC power input). This terminal, with +BAT B, serve as the secondary
connections for a DC power supply.
ALARM NO Pin 1 Alarm relay: normally open contact*
ALARM NC Pin 2 Alarm relay: normally closed contact*
ALERT NO Pin 3 Alert relay: normally open contact*
ALERT NC Pin 4 Alert relay: normally closed contact*
ALARM
COM
Pin 9 ALARM relay: COMMON
ALERT COM Pin 11 ALERT relay: COMMON
* The 1RU shelf equivalents are pins on the DB-15 ALARMS connector.
** When the shelf is not powered (turned on), all relays default to their alarm positions. Normally
open contacts are closed and normally closed contacts are open.