Gasboy Enhanced Communications - Manual (Page 30)

Serial-to-LAN Connection Installation
Page 30 MDE-4520C Enhanced Communications Installation Manual · February 2008
• When using the Modem Emulation mode, the adapter connected to the PC emulates a
modem. The PC sends AT commands and the adapter responds as if it were a modem.
However, instead of a phone number, the user must use the Gasboy system adapter IP
address and port number (refer to
Accessing Adapter Parameters on page 32 ) as the
number to dial. When the IP address and port number are dialed, the adapters establish a
TCP/IP link between them. At this point, they work the same as in Direct Connect mode,
sending and receiving data to and from the serial ports. When the “call” is over, the
adapters drop the TCP/IP connection. Using this mode allows one PC to communicate to
multiple Gasboy systems (one at a time).
Adapter Connections
The Serial-to-LAN adapter ( Figure 17 ) has a standard RJ45 Ethernet port (10Base-T), and
serial port and power connection. The Ethernet port is connected to a standard Ethernet hub or
LAN distribution point, usually with a CAT-5 cable.
For power, connect the AC power supply to the power plug and plug in the AC supply into an
outlet.
Figure 17: Serial-to-LAN Adapter
Note: The Reset Switch does not exist on
newer black adapter boxes.
For RS-232 wiring from the Gasboy system (Series 1000, TopKAT, or Islander) to the serial
port, see
Figure 18 on page 31 , Figure 19 on page 31 and Figure 20 on page 31 .
Note: The terminal blocks on different Gasboy systems may appear different from the ones
shown here, but the point-to-point connections and cables are the same. All
requirements for RS-232 and RS-422 defined in the Gasboy system installation manuals
apply to the wiring between the system and Serial-to-LAN adapter as well.