53
Appendix A: Hardware Changes
ALCN-792M Quad Loop Controller Module
This is a new module that supports four loops as opposed to the two loops that were be
supported by the ALC-396S Dual Loop Controller Module. The changes described are
compared to the ALC-396S. The P2 Power OUT connector has been moved. The watchdog
and the rest jumpers have also been relocated. There are module additions that did not exist
before such as the JTAG port and the RS-232 Debug Interface. The ALCN-792M is paired with
another board called the ALCN-792D. This is a daughter board which mounts on top of and
connects directly to the ALCN-792M. Refer to the figure below for component positions on the
ALCN-792M.
+ - + -
S
S
+ - + -
ALARM OUT
LOOP 1
LOOP 2
RS-485
P4
P2
P6
P1
P3
RS-485
ADDRESS
DIP SWITCH
RS-232
Debug
Interface
Loop 1
Active LED
Loop 2
Active LED
Four shaded
mounting holes are
for Daughter board
ALCN-792D
Top 2 holes and
bottom 2 holes are
used for the ALCN-
792 Quad Loop
Adder module
mounting
JTAG PORT
DIP SWITCHES ARE FOR THIS
BOARD’S ADDRESS. SW1-1
IS THE LEAST SIGNIFICANT
DIGIT (BINARY). ACTIVE POSI-
TION IS ON. REFER TO LT-894.
P5
SW1
POWER CABLE
(OUT)
POWER CABLE
(IN)
JW2
- normally shorted, a
jumper is here to enable
watchdog timer.
JW1
- normally open,
pins are momentarily
shorted to reset
hardware.
B
A
A
B
8
1
Green flashing
RS-485 heartbeat
LED
Green flashing
heartbeat LED for
on board processor
OUT
CABLE IN
Daughter Board
Connector
COM (-)
Note: The RS-232 and JTAG
Ports are for factory use only
Summary of Contents for Flex-Net Phase II
Page 1: ...Flex Net Phase II Application Guide LT 6045 Rev 1 October 2012 Application Guide...
Page 2: ......
Page 51: ...51 Hardware Layouts...
Page 115: ...114 Appendix B Using the Configurator...
Page 131: ......
