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INSTALLATION MANUAL
CA-A460-P - CA-A460-PNB
Relay Expansion Module
The CA-A460-P Relay Expansion module
provides an additional seven
to the CT-V900-A controller. Up to two
"plug and play" relay expansion modules
can be added to each controller for a
total of 16 relays per controller. The relay
expansion
modules
to the controller via a RS-485 E-bus
network, allowing you to install the relay
expansion modules a maximum distance
of 1220m (4000 ft.) from the controller.
The module features an activation status
LED for each relay, a communication failure
LED with an associated output, a 24-hour
anti-tamper input and supply monitoring.
Removable terminals are optional.
1] INSTALLATION INSTRUCTIONS
The E-bus is a RS-485 bus that allows you
to connect the relay expansion modules at a
maximum distance of 1220m (4000 ft.) from
the
controller
using
grade
3
cable
or
equivalent.
connects to the CT- V900-A controller through its
on-board terminals. For a description of the module's
terminals, see "Terminal Overview". The following
details
both
the
single
installation types.
CONNECTING A SINGLE CA-A460-P MODULE
Connect the A and B terminals on the CA-A460-P module
to the A2+ and B2- terminals on the CT-V900-A
controller. Then, connect the + and - terminals on
the CA-A460-P module to the +12V and GND terminals
on the CT-V900-A controller. See Figure 1.
As an alternate connection type, a 4-pin serial
connector (not included) can be installed between
the E-Bus connectors on the CA-A460-P module and
the CT-V900-A controller. See Figure 2. This installation
method can only be used when connecting a single
CA-A460-P module.
CONNECTING MULTIPLE CA-A460-P MODULES
When
installing
a
second
connect the A and B terminals on the second
CA-A460-P module to the A and B terminals on
the fi rst CA-A460-P module. The fi rst CA-A460-P
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2
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relays
are
connected
a
Belden
1227A
Ethernet
The
CA-A460-P
and
multiple
module
CA-A460-P
module,
is
connected
to
the
described in "Connecting a Single CA-A460-P Module".
Then, connect the + and - terminals on the second
CA-A460-P module to the + and - terminals on the fi rst
CA-A460-P module. See Figure 1.
Figure 1: Terminal Connections
+12V
GND
Z9-10
CT-V900-A
COM
Z11-12
Z13-14
COM
Z15-16
A1+
B1-
GND
-
TMP
TMP CF
GND
B
A
CA-A460-P
#1
2] TERMINAL OVERVIEW
Refer to the following table for a description of
some of the terminals found on the CA-A460-P
module.
Terminal Description
A / B
A and B are the communication connections for the E-bus
network.
+/ -
Each CA-A460-P module must be powered by 12Vdc. A
common ground must run from the controller to the relay
modules.
TMP
The two TMP terminals permit connection of the N.C. Anti-
tamper switch on the metal cabinet. When the contact
opens, a Relay Module Tamper event is generated.
CF Output This output, connected to an external bell or buzzer, is
switched to ground when the CA-A460-P module detects
communication loss with the controller. The Comm Fail LED
on the module will illuminate.
CT-V900-A
controller
A2+
B2-
GND
TMP
TMP
-
+
+
TMP
TMP CF
GND
B
A
CA-A460-P
#2
as
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