gefran GTF Series - 3.6 Configuration TTL Port; 3.7 Modbus RS485 Serial Communication; 3.8 Communication Ports Connection Example

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80960G_MHW_GTF_05-2019_ENG
3.6 confiGuration ttl Port (Gtf stanDarD)
Connector J2 GTF 25-120A - Connector J5 GTF 150-250A
Connector S1/S2
RJ10 4-4 pin
Nr. Pin Name Description Note
4
3
2
1
1 GND Ground
The use of this port is recommended
to congure parameters by Accessory
Gefran cable code F049095 (USB /
TTL)or Gefran cable code F043956
(RS232 / TTL) ONLY
2 RX_TTL Data reception TTL from GTF
3 TX_TTL Data transmission TTL to GTF
4 (Reserved Gefran) DO NOT connect
Cable type: at telephone cable for pin 4-4 conductor 28AWG
3.7 serial communication Ports moDbus rs485 (oPtion)
Connector J3-J4 GTF 25-120A - Connector J6-J7 GTF 150-250A
Connector S1/S2
RJ10 4-4 pin
Nr. Pin Name Description Note
4
3
2
1
1 GND1 (**)
(*) 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.
2 Tx/Rx+ Data reception/transmission (A+)
3 Tx/Rx+ Data reception/transmission (B-)
4 +V (reserved)
Cable type: at telephone cable for pin 4-4 conductor 28AWG
3.8 connection examPle: communication Ports
Integration of GTF with GEFLEX modules connected in RS485 Modbus
Figure 23
Flat
RS485