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3.6
c
onfiGuration
CONNECTOR J2 GTF 25-120A - CONNECTOR J5 GTF 150-250A
Connector S1/S2
RJ10 4-4 pin
4
3
2
1
Cable type: flat telephone cable for pin 4-4 conductor 28AWG
3.7
s
erial communication Ports moDbus
CONNECTORS J3, J4 GTF 25-120A - CONNECTORS J6, J7 GTF 150-250A
Connector S1/S2
RJ10 4-4 pin
4
3
2
1
Cable type: flat telephone cable for pin 4-4 conductor 28AWG
3.8
c
onnection examPle
Integration of GTF with GEFLEx modules connected in RS485 Modbus
Figure 23
18
ttl
(Gtf s
Port
tanDarD
Nr. Pin
Nome
1
GND
2
Rx_TTL
3
Tx_TTL
4
(Reserved Gefran)
RS485 (Option)
Nr. Pin
Name
1
GND1 (**)
2
Tx/Rx+
3
Tx/Rx+
4
+V (reserved)
:
communication Ports
)
Description
Ground
Data reception TTL from GTF
Data transmission TTL to GTF
DO NOT connect
Description
Data reception/transmission (A+)
Data reception/transmission (B-)
Note
The use of this port is recommended
to configure parameters by Accessory
Gefran cable code F049095 (USB /
TTL)or Gefran cable code F043956
(RS232 / TTL) ONLY
Note
(*) Insert the RS485 line termination
in the last device on the Modbus line,
see dip-switches.
(**) Connect the GND signal between
Modbus devices with a line distance
> 100 m.
Flat
RS485
80960_MHW_GTF_01-2012_ENG
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