Lanner LEC-3110 - Manual (Page 7)

5
Introduction
Chapter 1
Embedded and Industrial Computing
This terminal block can be connected as 8 Com ports with serial port type of RS-232, RS-422 or RS-485; it
supports dip switch selection among RS-232, RS-422 and 485 The following table lists the pin assignments
Refer to Chapter 3 Motherboard Information for dip switch adjustment information Note that Pin 1 starts from
right. They are capable of 15KV ESD (ElectroStatic Discharge) Protection and 2KV Surge Digital Isolation
R6 Redundant Power Supply Socket
A redundant power supply through 1x2-pin Phoenix Contact with 12~36V is provided on the system It has
ESD Protection for15KV and surge Digital isolation for 2KV The socket also features reverse polarity protection
Hence, it will not cause any damage to the system by reversed wiring of ground line and power line
R7 Power Switch
The power switch comes with the switch which can be used to turn on/off the power from the power supply
R8 Power Socket
The AC inlet comes from the unit’s built-in 150W open frame power
Pin NO.
Port Type
Pin 1 Pin 2 Pin 3 Pin 4 Pin 5
RS-232 TXD RTS RXD CTS Ground
(GND)
RS-422 TX+ TX- RX- RX+ Ground
(GND)
RS-485 TX+ TX- RX- RX+ Ground
(GND)
RS-485 (2 wires) DATA+ DATA- Ground
Pin No. 1 2
Function DC + / - DC - / + 12