
Copyright © 2012 NEXCOM International Co., Ltd. All rights reserved
17
VMC 3000/4000 Series User Manual
Chapter 1: Product Introduction
COM1 RS-232 Connector
Connector size: DB-9 male port, 9-pin D-Sub
Connector location: CN9
Pin
Definition
Pin
Definition
1
SP_DCD_1
7
SP_RTS_1
2
SP_RXD_1
8
SP_CTS_1
3
SP_TXD_1
9
COM_RI_PWR
4
SP_DTR_1
MH1
CH_GND
5
COM1_GND
MH2
CH_GND
6
SP_DSR_1
5V/12V Power Output Connector
Connector location: CN8
Pin
Definition
Pin
Definition
1
5V_OUT
4
GND
2
12V_OUT
5
GND
3
MSMB_CLK
6
MSMB_DATA
1
5
6
9
1
3
4
6