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5.16 ALCN-4792MISO Quad Loop Adder Module with ALCN-792D Daughter
Board
The Quad Loop Adder module provides two SLC loops plus an additional two SLC loops as
part of the daughter board ALCN-792D which is mounted over the ALCN-4792MISO. The
Quad Loop Adder module may be mounted over the main chassis of the fire alarm panel.
Refer to the Display and Adder Modules section for mounting applications. This module is
mounted using four #6 screws and (if necessary) four 1 1/2" spacers.
Power The power is supplied to the board via cable from the main fire alarm
board or from the previous loop controller module into the P1 POWER IN
connector. Connect the P2 POWER OUT connector to the next loop
controller module or other adder module. One power cable is supplied
with this module.
RS-485: The RS-485 cable comes attached at P4 on the ALCN-4792MISO and is
either connected to P3 of the main fire alarm controller module or
connected from the previous loop controller module or other adder board.
If the next loop controller module is used, connect the RS-485 out at P3
for ALCN-4792MISO to the next loop controller module; if it is not used,
leave without connection.
DIP Switches: Use the DIP switches to set the binary address of the board. SW1-1 is the
lowest significant digit and ON is active. For example, an address of two
would be created by turning SW1-1 OFF, SW1-2 ON and DIP switches
SW1-3 to SW1-8 OFF. Refer to Appendix C for DIP switch settings.
Loop 1: This is the addressable loop for all initiating devices. Wire the loop as
shown in Figures Figure 33, Figure 34 and Figure 35.
Loop 2: This is the addressable loop for all initiating devices. Wire the loop as
shown in Figures Figure 33, Figure 34 and Figure 35.
Shield: If the SLC loops are shielded, connect the shields to the terminals marked
COM(-). To prevent the board reporting a ground fault, do not connect
shields on SLC lines to earth ground.
Note: Unshielded wiring is preferred.
Jumpers: ALCN-4792MISO:
•JW1: Factory use only. Leave open.
•JW2: Factory use only. Leave closed.
•JW3: 3 pin jumper. Normally set to 1-2, can be set to 2-3 to prevent noise
from CLIP System Sensor sounder bases on Loop 1. Pin 1 is marked with
a dot.
•JW4: 3 pin jumper. Normally set to 1-2, can be set to 2-3 to prevent noise
from CLIP System Sensor sounder bases on Loop 2. Pin 1 is marked with
a dot.
•JW6: Factory use only. Leave closed.
ALCN-792D:
•JW1: Three pin jumper. Normally set to 1-2, can be set to 2-3 to prevent
noise from CLIP System Sensor sounder bases on Loop 4. Pin 1 is
marked with a dot.
•JW2: Three pin jumper. Normally set to 1-2, can be set to 2-3 to prevent
noise from CLIP System Sensor sounder bases on Loop 3. Pin 1 is
marked with a dot.
JTAG Port: This connection is for factory use only.
USB Port This connection is for factory use only.
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