User manual

Chapter 2 Installation
EC0-1815V2NAR - 9 -
Serial Port
Signal Name
Pin
RS-232
COM1 ~ COM6
RS-485
COM1/COM2
1 DCD# Data-
2 RXD Data+
3 TXD NC
4 DTR# NC
5 GND GND
6 DSR# NC
7 RTS# NC
8 CTS# NC
9 RI# NC
COM1/COM2
Pitch: 2.54mm
10 NA NA
Note: 1. The data transmission direction is controlled automatically under RS485
mode; 2. The pin definitions for Pin9 on COM3 and COM4 include RI#/5V/12V.
Status Indicating and Control Connector
ATX Power Switch and Hard Disk Indicator Connector
Pin Signal Name Pin Signal Name
1 PWRBTN# 2 GND
3 GND 4 RESET#
FP1
(Pitch: 2.54mm)
5 HDD_LED- 6 HDD_LED+
Power Indicator Connector
Pin Signal Name
1 PWR_LED+
2 NC
FP2 (Pitch: 2.54mm)
3 GND