EverFocus KS-VM164 Operating Instructions Manual page 52

3.5.3 Connection s for alarm management
See pin configuration table for the DB25 connector.
3.5.3.1 Alarm contac ts
WARNING! Do not energise the alarm contacts! The sensors (or the alarm system in use) should supply
a dry contact. To manage the alarms correctly, be very careful when configuring the alarm parameters at the
matrix programming stage.
3.5.3.2 Auxiliary con tact (alarm relay)
The KS VM 164 matrix can be used to control an auxiliary contact (relay) that is activated when there is an
alarm, if properly configured at the matrix programming stage. The auxiliary relay contacts are at pins 21 and 22
of the DB25 connector.
3.5.3.3 External rese t
The reset impulse is recognised on the falling or rising edge (which can be set at the matrix programming
stage).
Pin 17 of the DB25 connector is associated with External Reset of the alarm condition and the ground reference
is pin 18.
3.5.4 Standard c able
The connection between the KS KBJ keyboard and the various controlled devices is made only and exclusively
using a RS485 serial channel.
A pair of telephone cables with a pair of RJjack shunt boxes can be used to arrive at distances of up to 1200m
using the following connection diagram:
3.5.4.1 Telemetry rec eivers (AUX line)
All the receivers specified in section 2.2 Connectable devices and the KS VM 164 video matrix can be
connected by telephone cable using the RJ-11 socket called AUX.
They can be connected directly using the 1.5m cable (supplied by the manufacturer) for a test or, for longer distances,
using the RJ-jack wall-mounted boxes (supplied by the manufacturer) and referring to the following table:
All the receivers should be set up for RS485 communication mode and with a transmission rate that is
compatible with the setting made for the matrix at the programming stage.
See the respective manuals for configuring the receivers.
There are two possible ways of connecting the receivers to the AUX line:
• Receivers in cascade (Point-to-point connection)
• Receivers on the same line (Multi-point connection)
RJjack1
KS KBJ/KS KBK RJjack 1
RS485A
RS485B
KS VM 164 RJjack 1
RS485A
RS485B
L=1200 m
RJjack2
RJjack 2
White Blue
Yellow Black
RJjack 2
White Blue
Yellow Black
Pag. 12
KS VM 164
RS485A
RS485B
Device
RS485A
RS485B
MNECKSVM164_0350