Online Electronics 4003 MAGSIG, Руководство по эксплуатации

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4003_5001_D02 Page 23 of 35
4.10. EXTERNAL CONNECTIONS
To access external connections, follow the steps below:
1.
The Special Conditions for Safe Use detailed in Section 9
SAFETY INSTRUCTIONS of this manual must be observed
at all times.
2.
Remove the ENDCAP and INTERNAL ASSEMBLY as
described in Section 4.9
BATTERY REPLACEMENT
of this
manual to reveal the external connections as shown.
All connections are made using 5.0mm pitch pluggable terminal blocks which can accept up to
2.5mm2 (12AWG) wire size. All connections must be made using suitable crimp ferrules.
When connection is required to intrinsic safe equipment using the relay contacts covers will be
provided (at the time of manufacture) for RLY1 & RLY2 connection blocks. When a remote sensor
is fitted a cover will be fitted at manufacture over the sensor connection block and should not
be removed.
Connections are clearly labelled on the PCB and have the following functions:
NC
- Normally Closed contact of relay pole 1 and 2
COM - Common contact of relay pole 1 and 2
NO - Normally Open contact of relay pole 1 and 2
CL/PWR - External 24Vdc supply or Current Loop input (non-polarised)
CL/PWR - External 24Vdc supply or Current Loop input (non-polarised)
RS485G
- RS485 GND
RS485+(B) - RS485 DATA + (B)
RS485-(A)
- RS485 DATA - (A)
ACC+ - Accessory power supply positive
ACC- - Accessory power supply negative
SENSOR - Remote Sensor connection