Gasboy CFN Series Site Controller III - Manual (Page 38)

System Components Wiring Communication Requirements
Page 34 MDE-4298D CFN Series Site Controller III Installation Manual · September 2009
• RS-485 Modular Cable: The RS-485 modular cables required are supplied with the
system. These cables are not compatible with standard phone cables that are obtained from
other sources.
Gasboy-supplied cables are 8 feet long. If you need to connect a CFN component with a
modular connector (console) that is more than 8 feet from the system, you must use an
RS-485 junction box to connect the device to the RS-485 communication wiring.
• Connections: Refer to “System Components Wiring Diagram” on page 35 for proper
connection of the RS-485 field wiring to the CFN system components.
RS-232
RS-232 wiring can be used for communication between the CFN SC and EIA RS-232
compatible peripheral devices (printer, modem, and so on). The remote end of the wiring can
be terminated with either an RS-232D connector or a Gasboy termination box. You must
follow these installation requirements when installing the CFN RS-232 communication lines:
• All peripheral equipment connected to the RS-232 ports must be listed, have an EIA
standard RS-232 communication protocol and should not be installed in a hazardous
location.
• Distance: The following distances must be adhered to when installing the RS-232
communication lines:
- 1 - 100 feet: RS-232 can be directly connected to a peripheral device.
- 101 - 1500 feet: An RS-422 Cable and a Gasboy SHM are required (refer to
“Short Haul
Modem (SHM) RS-422” on page 39 ).
• Conduit: All direct connect RS-232 Cables over 15 feet must be in a metal conduit away
from any AC wires. For conduit requirements of SHMs, see the installation sheet that
applies to the device being used.
• Cables: RS-232 Cables can be purchased from Gasboy. The type of cable required will
vary according to the devices it connects.
Connection Cable Type Gasboy Part Number
Port 1, 4, 5, and 6 to modem MiniDIN to 25DB C05995
Port 1, 4, 5, and 6 to terminal MindDIN to 25DB C05994
* All electronic pumps and controls must be installed according to the manufacturer’s specifications.
Figure 4-1: RS-232 1:1 Cable (Part Number Q13240-09 - 6-feet M/F)
DB 25
Male
DB 9
Female
13 25
1 14
5
1
9
6
RS-422
For guidelines and restrictions on RS-422 wiring, refer to “Short Haul Modem (SHM) RS-422”
on page 39 .
Two-wire Current Loop
For guidelines and restrictions on the Two-wire Current Loop used for ICR2, refer to
MDE-2713 Universal Distribution Box Installation manual.