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4.5 Signal cable connection
CAUTION! TNV-1 installation type. The
installation is type TNV-1, do not connect it
to SELV circuits.
SIGNAL CABLE CONNECTION
Colour
Function
White
RS-485 A (+)
Yellow
RS-485 B (-)
Pink
Relay 1, Terminal A
Violet (blue, cable
Relay 1, Terminal B
tail version)
Red (brown, cable
Alarm/Digital input
tail version)
Green
GND/Common alarm
Grey
Reset
Tab. 3
4.5.1 Connecting the telemetry line
Do not connect the serial communication
line in the IP version of the product.
The cables provide access to 1 x RS-485 serial
communication line.
Telemetry lines connect the device to control and
programming units (keyboard or PC).
The product is able to automatically
recognise the type of protocol used
(PANASONIC 850, PELCO D, VIDEOTEC
MACRO).
4.5.2 Alarm and relay connections
The external relay and alarm cable shield
must be earthed.
8
4.5.2.1 Connecting an alarm with dry contact
In case of free contact alarm make the connection as
shown in the figure.
AL1
COM
Fig. 2
AL1: Alarm 1. COM: Common alarms.
The dry contact alarm can be NO (normally open) or
NC (normally closed).
For further information refer to the relative chapter (
6.1.7.1 Alarms Menu, page 20).
4.5.2.2 Relays connection
The relays are usable with the specifications
described below. Working voltage: up
to 30Vac or 60Vdc. Current: 1A max. Use
suitable cable sections with the following
characteristics: from 0.25mm² (23AWG) up
to 1.5mm² (16AWG).
Due to the absence of polarity, both terminals of
the same relay can be used equally with either
alternating or continuous current.
For further information refer to the relative chapter (
6.1.7.1 Alarms Menu, page 20).
Dry contact
MNVCMVXCAM_1645_EN
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