Xantech 796-20 Installation Instructions - page 5
5
Modules & Connecting Blocks
Fig. 5
An 18-Zone System Using Three 796-20's
CONNECTING MULTIPLE 796-20's FOR ZONE EXPANSION
Fig. 5
shows how three 796's may be connected for an 18-zone system. The three wire COMMON
connections from each 796 are paralleled at the input of a 791-44 Amplified Connecting Block to drive the
common source emitters. Combinations of two or more 796's may be similarly connected to handle virtually
any multizone requirement.
• For simplicity, only three zones on each 796, zones 7, 8, and 9, are shown in the diagram. All six zones
of each 796 may be wired with any choice of IR receivers and keypads, in the same manner as that shown
in
Fig. 2
.
• The maximum number of zones using IR receivers is limited only by stray IR noise considerations. See
item 1, page 1.
• Keep in mind that you will need to apply different zone numbers to the 796-20's so they will match the actual
zone numbers you assign to rooms.
• Plug emitters into the ZONE EMITTERS A and B jacks as required.
• Power is applied to the system via the power supply connected to the 791-44. Be sure to take the current
drain of all devices into consideration when calculating the total current for choice of power supply.
PLEASE NOTE:
Be sure that the 781RG or the 782-00 Power Supplies, where used, are plugged into
unswitched AC outlets. This maintains the IR control system in "standby" operation so that power-on
commands can be sent to the equipment.
MOUNTING
The 796-20 can be conveniently mounted to a wall or shelf by using the four sheet-metal screws and the
two right-angle brackets supplied. Fasten a bracket to each end surface of the 796 using the two small black
screws, driving them into the holes provided. Use the longer screws to attach the unit to a wall or shelf. The
holes in the ends are located so that two different mounting positions are possible. The unit may be mounted
in any orientation to accommodate the installation.
796-20
9-29-00
ZONE 9
ZONE 8
ZONE 7
COMMON
ZONE IR INPUTS
+12 IN G +12 IN G +12 IN G +12 OUT G
A
B
A
B
A
B
ZONE 7
ZONE 8
ZONE 9
ZONE EMITTERS
ZONE 9
ZONE 8
ZONE 7
COMMON
ZONE IR INPUTS
+12 IN G +12 IN G +12 IN G +12 OUT G
A
B
A
B
A
B
ZONE 7
ZONE 8
ZONE 9
ZONE EMITTERS
ZONE 9
ZONE 8
ZONE 7
COMMON
ZONE IR INPUTS
+12 IN G +12 IN G +12 IN G +12 OUT G
A
B
A
B
A
B
ZONE 7
ZONE 8
ZONE 9
ZONE EMITTERS
To 120 V AC
(unswitched)
782-00
Power Supply
791-44
Amplified
Connecting Block
To Zone IR
Receivers,
Keypads, etc.
MODEL 796-20
To Zone IR
Receivers,
Keypads, etc.
To Zone IR
Receivers,
Keypads, etc.
To Emitters on Common
Source Components
MODEL 796-20
MODEL 796-20
+ 1 2 V D C
G N D
EMITTERS
12 VDC
HIGH
OUT
S TAT U S
I R I N
IR
RCVR
791-
44
AMPLIFIED
CONNECTING BLOCK
®