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1
Off
2
Off
3
Off
4
Off
1
On
2
On
3
On
4
On
Erase
A
ddress
Gnd
A
B
+
v
Digital Bus
Connector
Terminator
Programmer Jack
GR 2404
Control Card
Los Angeles, Ca
213-226-0000
4 Off
4 On
3 Off
3 On
2 Off
2 On
1 Off
1 On
Gnd
+ 5 V
On
Line
16
32
64
8
1
2
4
1
2
3
4
Manual ON/OFF
Switches for
each zone.
Pilot Lamps
show address
if Address/Erase
Button pushed.
Optional
hard wired
inputs.
Relay Drivers
Gray Connector may also be
used for the Clock/Programmer
Bus Connection
Terminator
GR 2404 S Relay Panel
The GR 2404s is called a “Micro Panel.” The GR 2404-iDH
and GR 2404-iDIM have their own manual.
The "Micro Panel" is designed for use where only 2-4
relays are needed at a distance from the main panel. Run-
ning the data bus wire is less expensive than running con-
duit and 8 switch leg wires over the same distance.
Special Features of the GR 2404
The GR 2404 Micro panels can also be used as stand
alone panels with built in timers for an inexpensive energy
management system or tennis court control system.
The hard wired inputs to the GR 2400 system can be wired
as shown on the next page.
The hard wired ON/OFF inputs may be programmed via the
Clock/ Programmer in the RELAY PROPERTIES MENU or
if requested, in advance, by the factory to be Toggle/Off
inputs or Maintain/Off inputs.
The Clock/ON Input has a dual function. If wired to a
momentary switch it will act as an All ON switch to comple-
ment the ALL OFF input. All 4 zones will be switched.
GR 2404 Card
Gnd
Al
l
O
ff
Clock/ON
1234
Gnd
A
B
12v
Page 16
Bus Connections
22