4.0 - APPENDIX
4.1 RS-232 DB-25 DCE PORT PIN OUTS(Same All Five Ports)
Below is a pin-out chart for the MSD-4C RS-232 DCE port pin-outs.
X
Data Terminal Ready (DTR)
20
X
Data Carrier Detector (DCD)
8
---
---
Signal Ground (SG)
7
X
Data Set Ready (DSR)
6
X
Clear To Send (CTS)
5
X
Request To Send (RTS)
4
X
Transmit Data (TXD)
3
X
Receive Data (RXD)
2
---
---
Shield (GND)
1
To DCE
To DTE
Signal Description
DB-25
Pin No.
4.2 STRAP CHARTS
OFF
ON
Off
Off
Off
115200
ON
OFF
On
Off
Off
76800
ON
OFF
Off
On
Off
38400
ON
OFF
On
On
Off
19200
ON
OFF
Off
Off
On
9600
ON
OFF
On
Off
On
4800
ON
OFF
Off
On
On
2400
ON
OFF
On
On
On
1200
S3-2
S3-1
S1-1
S1-2
S1-3
SPEED
Off
X
X
Disable
On
X
X
Enable
OFF
OFF
16 SEC
ON
GRAPHIC
ON
OFF
8 SEC
OFF
TEXT
OFF
ON
4 SEC
ON
ON
2 SEC
S1-4
TEXT/GRAPHIC
S7-1
S7-4
S7-3
ANTI STREAM
MSD-4C INSTALLATION AND OPERATIONS MANUAL
Page 7