IR Receivers & Modems
3
3-13-00
490 Series
490-30 Cable Connections
490-30's may also be used where the 7-foot lead is not long enough. In this case, simply cut off the mini
plug, strip the leads and connect them to a 3-terminal block in the same way as you would for the 490-00.
For correct color identification of wires, refer to the following tables and diagrams:
Phantom Power Connections
Some existing installations may have only 2 wires (such as coax) going to a remote room. The 490, when
used with a 792-10 Power Module, may be connected for 2-wire phantom power operation as follows:
Additional 490's may be wired in parallel at the 3-terminal block, up to a maximum of three. More than this
may cause unreliable results.
CAUTION:
With any of these systems, be sure the 781 power supply is plugged into an un-switched AC
outlet. This maintains the 490 system in "stand-by" operation so that power-on commands can be sent to
the controlled equipment.
3-Terminal
Block
OUT
+12V
GND
WHITE
3-Conductor
Wire to
Controlled
Equipment
490-30
7-Foot 3-Conductor Cable
with Mini Plug removed
See Tables for
Wire Color
Table 1 - Black Insulators (older units)
CABLE LEADS
CIRCUIT ITEM
RED
WHITE
BLACK
GROUND
OUTPUT
+ 12 V
PLUG
RING
TIP
SLEEVE
CABLE LEADS
CIRCUIT ITEM
BLACK
WHITE
RED
GROUND
OUTPUT
+ 12 V
PLUG
RING
TIP
SLEEVE
Table 2 - Red Insulators (newer units)
Tip
Ring
Sleeve
Insulators
Mini Plug
(3-Conductor)
792-10
POWER MODULE
+12V
OUT
IN
GND
+12V
OUT
XANTECH CORPORATION
SYLMAR CA • MADE IN USA
1 (ON)
0 (OFF)
1 2 3 4 5 6 7 8 9 1 0
ON
1 2 3 4 5 6 7 8 9 10
792-10
Power Module
(In Phantom
High Current mode)
490-00
Series
IR Receivers
Red (or white)
Stripe
3-Terminal Block (supplied)
2-Conductor
Inter-room Cable
(usually coax)
OUT
+12V
GND
7' Ribbon Cable
To
282M
or
283M
Emitters
on controlled
equipment
Use wire jumper
between screws as
shown
REMOTE ROOM
SIGNAL
GROUND
EMITTERS
790
CONNECTING BLOCK
XANTECH CORPORA
TION
SYLMAR CA
• MADE IN U.S.A.
IN / OUT
IN / OUT
781RG
Power Supply
790-00
Connecting Block
MAIN ROOM
