Gasboy Enhanced Communications - Manual (Page 28)

Serial-to-LAN Connection Installation
Page 28 MDE-4520C Enhanced Communications Installation Manual · February 2008
Figure 14: Serial (RS-232) Port Interface Pinout and Signals Chart
Serial (RS-232) port interface pinout and signals
9
pin #
25
pin#
Acronym Full name Direction Mean
3 2 TxD Transmit Data —» Transmits bytes out of PC
2 3 RxD Receive Data «— Receives bytes into PC
7 4 RTS Request To Send —» RTS/CTS flow control
8 5 CTS Clear To Send «— RTS/CTS flow control
6 6 DSR Data Set Ready «— Modem ready to communicate
4 20 DTR
*
Data Terminal Ready —» Terminal ready to communicate
1 8 DCD Data Carrier Detect «— Modem connected to another
9 22 RI Ring Indicator «— Telephone line ringing
5 7 SG Signal Ground
*Not provided on CDR9150
Serial-to-LAN Connection Installation
Serial-to-LAN Configuration Options
There are two options when connecting Gasboy systems to the Serial-to-LAN adapter.
Note: In most cases, a C04532 cable (included with the kit) will be needed to connect the
Serial-to-LAN adapter to the Gasboy Short Haul Modem (C05618) or Gasboy
Termination Box (C05769).
TCP/IP Configuration (use M06643K001)
The first option is to use only one adapter in a Transmission Control Protocol/Internet Protocol
(TCP/IP) configuration (
Figure 15 on page 29 ). With this option, the adapter is connected to
one of the Gasboy system’s serial ports. The user then uses a PC utility such as Telnet to open
a TCP/IP communication session to the Gasboy system. In this configuration, no serial port is
needed at the PC. With each adapter assigned its own IP address, one PC can be used to
communicate to multiple Gasboy systems (one at a time).
Note: This configuration does not work with the Gasboy PC packages.