MesCom
– Workshop Manual – D6000/i14/V10
© Dycon Ltd 2014
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6
MesCom inputs are designed to interface with a wide variety of low-voltage devices, relays
and contacts, typically as used by monitoring sensors and alarm systems.
The MesCom power input is suitable for connection to a Dycon 1A power supply unit, or a
similar power source, which delivers a protected 6-30VDC voltage. It is not designed for
connection to industrial power sources without the provision of additional anti-surge
protection. Care should be taken to ensure correct polarity.
To avoid unnecessary notifications, all connection to inputs and outputs should be done
before powering the MesCom (alternatively use engineer-on-site mode, see sections 4.3).
2.3 Battery
The battery is a 3,7v 640mAh Li-ion battery with built-in protect circuit and JST ZHR-2
connector.
See section 3.1 for how to connect the battery to the MesCom.
2.4 Indicators
The MesCom has 3 LED indicators to show the current status and mode of operation - see
section 4.1 for more detail.
2.5 Inputs
Inputs can measure up to 3V signals and can withstand voltage up to 30V. Voltage above
30V will damage the inputs.
Inputs can be configured as digital or analogue - see section 7.4 for more detail.
2.5.1 Digital Input Wiring Options
Eg. Signal from panels, switches and contacts etc.
Voltage present / absent
High going low
Low going high
Limiting resistor for
safety only
Pull down resistor
Pull down resistor
Pull up resistor
Ip1
Ip2
Ip3
Ip4
0V
Op1
Op2
10k
Digital Voltage
signal upto 30v
Current limiting
Resistor
0V
Examples
Alarm panel signals
Flood sensor
Volt-free contact
Open collector
SO, FET or Opto-couple
Pull up resistor
Pull up resistor
Pull up resistor
Ip1
Ip2
Ip3
Ip4
0V
Op1
Op2
Volt-free
contact
Device to monitor
Signal
0V
Examples
Switch contacts and relays
Energy meter pulse output
Float switch