
Installing
4.3 Electric connections non Ex
SITRANS SL
52
Operating Instructions, 12/2010, A5E01132948-04
4.3.3
Connecting cables
Sensor connection cable
The sensor connection cable connects the receiver and the transmitter of the SITRANS SL.
The sensor connection cable is used to transfer:
●
100 kbps RS-485 communication and synchronization
●
power for the transmitter
●
ground.
Table 4- 1
Electric connections for sensor connection cable, valid for non Ex product versions
Screw terminals on junction board
Receiver
Transmitter
Function / Power
L1
S1
+
L2
S2
-
24 V DC power supply to transmitter unit
L3
S3
Com+
L4
S4
Com-
L5
S5
Sync+
L6
S6
Sync-
RS485 communication
Chassis
Chassis
Ground
Chassis
Chassis
Ground