Philips LRC2410 Installation Instructions Manual page 7

LRC2410 is a native BACnet device which uses the MS/TP communication protocol. Follow all typical MS/TP network wiring
conventions when connecting to a Building Automation Network.
- Use only Belden 3105A for the MS/TP network wire.
- End units must be terminated. Units in the middle of the network are not terminated.
- LRC2410 MS/TP Network wiring connections use IN and OUT terminal blocks. There is no need to connect the IN
and OUT network wire in the same terminal block. See Figure 8 for details.
- See Figure 9 for termination details.
END OF NETWORK
TO BUILDING
AUTOMATION
SYSTEM
REMOVE TERMINATION WHEN
CONNECTING TO BAS
WHEN CONNECTING TO TO BUILDING
AUTOMATION SYSTEM , APPLY TERMINATION
TO END DEVICE ONLY
1
ON
COM
OFF
PILOT
2
ON
COM
OFF
PILOT
3
ON
COM
OFF
PILOT
4
ON
COM
OFF
PILOT
5
ON
COM
OFF
PILOT
6
ON
COM
OFF
PILOT
7
ON
COM
OFF
PILOT
8
ON
COM
OFF
PILOT
ANALOG
PHOTOCELL
AGND
INPUT
+20V
TO BUILDING
AUTOMATION
SYSTEM
MSTP Network Connections
BACnet MS/TP
MIDDLE OF NETWORK
AUTO
SW1
1
2
3
4
5
6
7
8
NET NET
IN OUT
+20V GND ON COMOFF
A B SHLD A B SHLD
SHIELD
NET B
NET A
Figure 8 - LRC2410 network connections
BACnet MS/TP
MIDDLE OF NETWORK
1
ON
COM
OFF
PILOT
2
ON
COM
OFF
PILOT
1
2
3
ON
3
COM
OFF
4
PILOT
4
ON
COM
OFF
PILOT
5
ON
COM
OFF
PILOT
6
ON
COM
5
OFF
PILOT
6
7
7
ON
8
COM
OFF
PILOT
8
ON
COM
OFF
PILOT
ANALOG
PHOTOCELL
AGND
INPUT
+20V
NET NET
AUX
IN OUT
POWER HOA
+20V GND ON COM OFF
A B SHLD A B SHLD
LRC2410 NETWORK
END UNITS MUST BE TERMINATED
LRC2410 Installation Instructions, Part No. CDCS000314 Rev. A 7/11
BACnet MS/TP
1
ON
COM
OFF
PILOT
2
ON
COM
OFF
PILOT
1
2
3
ON
3
COM
OFF
4
PILOT
4
ON
COM
OFF
PILOT
5
ON
COM
OFF
PILOT
6
ON
COM
5
OFF
PILOT
6
7
7
ON
8
COM
OFF
PILOT
8
ON
COM
OFF
PILOT
ANALOG
PHOTOCELL
AGND
INPUT
+20V
NET NET
AUX
IN OUT
POWER HOA
+20V GND ON COMOFF
A B SHLD A B SHLD
BACnet MS/TP
END OF NETWORK
NETWORK CABLE
BELDEN 3105A
1
ON
COM
OFF
PILOT
2
ON
COM
OFF
PILOT
1
2
3
ON
3
COM
OFF
4
PILOT
4
ON
COM
OFF
PILOT
5
ON
COM
OFF
PILOT
6
ON
COM
5
OFF
PILOT
6
7
7
ON
8
COM
OFF
PILOT
8
ON
COM
OFF
PILOT
ANALOG
PHOTOCELL
AGND
INPUT
+20V
NET NET
AUX
IN OUT
POWER HOA
+20V GND ON COMOFF
A B SHLD A B SHLD
Page 7