Com Ports 0 And 1; How To Insert Rs-485 Fail-Safe And Termination Resistors - Eurotech ReliaGATE 10-05-34 Original User Manual

ReliaGATE 10-05-34 User Manual Rev 1-0
10.7

COM ports 0 and 1

The ReliaGATE 10-05-34 provides 2 COM ports on the 8-position connector located on the front panel (pins
3 to 8):
Port
COM 0
COM 1
10.7.1

How to insert RS-485 fail-safe and termination resistors

To insert the RS-485 fail-safe and termination resistors use the DIP switch selector located on the front
panel, sliding levers 1 to 3.
The sliding levers have the following meaning:
Lever # Description
1
2
3
Type
RS-485
RS-232 (3-wire)
ON: 4.7 kΩ pull-up resistor inserted on line RS-485+ (A)
OFF: No resistor inserted (default configuration)
ON: 4.7 kΩ pull-down resistor inserted on line RS-485- (B)
OFF: No resistor inserted (default configuration)
ON: 120 Ω termination resistor inserted on lines RS485+ / RS485- (A / B)
OFF: No resistor inserted (default configuration)
Protection Max baud rate
Surge Protected Up to 3.6864 Mbps
Surge Protected Up to 450 kbps
10 Interfaces in detail
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