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Relay Controlled Outputs
Connect controlled outputs to low voltage devices (25 mA max).
Add external relays for high voltage devices (optional - Kantech # KT-RM1).
The KT-315 provides two controlled outputs - RL1 & RL2
(open collector to ground-current limited to 25 mA). Use a
KT-RM1 (optional) to switch larger currents or voltages or
to supply a dry contact.
When activated, relay 1 and 2 (RL1 and RL2 LED)
outputs provide visual feedback of their active status, as
shown in the figure on the right.
Can be expanded up to 16 controlled outputs when using
a KT-PC4216 module. This module allows a maximum of
16 outputs and a maximum of up to 50 mA per output.
Since the KT-315 only supports 500 mA, a power supply
module can be used to provide an additional 1 A to the
Combus.
NOTE:
If you are using a KT-PC4204 in "repower" mode
and other KT-PC4216 modules that are assigned
as relays 1-16 also connected to the same loop,
do not use relay 1 of those modules or relay 1 of
the KT-315 Door Controller (see the Combus
Repower section for more information).
Auxiliary Outputs
Connect auxiliary outputs to readers and local
warning devices.
Auxiliary outputs are used for visual and audible signals. They can be activated according to schedules, input conditions or
events and local alarms. Auxiliary outputs "OUT DOOR 1 & 2 LED" provide visual feedback of access operation, and auxiliary
outputs "OUT DOOR 1 & 2 BUZ" can activate audible warning devices, such as T-REX, to signal door alarms.
Tamper Protection
Install tamper switch on cabinet (Kantech #KT-TAMPER).
A tamper switch must be installed on the unit to detect unauthorized cabinet opening.
The normally closed tamper switch is connected to an input (choose an unused input as tamper input or any other unused
inputs on the KT-PC4108 module (if used)).
NOTE:
The tamper switch is required for a UL listed installation.
Connecting the KT-315
Connecting to the RS-485 Bus
Connect RS-485 cable to X1+, X1- and GND.
Controllers are linked together through their RS-485 connectors. The maximum communication loop length is 1.2 kilometers
(4,000 feet) using appropriate cabling. Connecting several KT-315 controllers at a single point is not acceptable nor are splitters
or "spider web networks."
The RS-485 communication loop should be wired with Ethernet Category 3 double twisted pair network cable (see cable
specifications Belden 1227A, or equivalent). The RS-485 loop can operate from 1,200 to 115,200 bauds under normal
conditions.
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