Gasboy CFN Series Diagnostic Manual - Manual (Page 412)

CFN Islander
13-44 12/26/02
TOKHEIM PUMPS
Only the Islander II can directly communicate with Tokheim pumps. Tokheim pumps controlled
by an Islander I would have to be connected to Pump Control Units. The Tokheim splitter allows
the Islander II (Site Controller II) to communicate with Tokheim pumps using only one RS-232
port (ports 1 or 3). The splitter requires a C05876 or C05878 cable assembly and version 2.0B or
above software for dual channel operation. The splitter splits communications to Tokheim pumps
by using the RTS signal from the port. C06994 is used when connecting to 3 or more 98 boxes
and includes C05878.
NOTES: When using a Tokheim 98 box, the following connections must be made within the box:
TALK DISP must be connected to +9V with a 1K Ohm resistor; DC COM must be connected to
GND. If using multiple 98 boxes, the motherboard (P/N 415653-1) must be equipped with two
isolation diodes (mounted about 1/2" below the J9 connector). Refer to the Pump Interface
Manual, C09146 for more information.
Layout
1. Use a C05578 cable for connection to a single 67 or 98 Interface box. Use a C05876 cable for
connection to two 67 or 98 Interface boxes. Both cables include the Tokheim Splitter.
2. A Model 180 signal cable extension is available as an accessory from Tokheim. The maximum
distance of the combined cables should not exceed 350 feet. The maximum distance for a 94 or 98
interface box is 250 feet.
3. Use part number C06694 for connection to three or four 98 series computer modules. C06694 is the
combination of one C05878 cable, two C05577 cables and a Tokheim Splitter.
4. Communication for pumps 1-32 may be provided through port 1 or 3 of the Site Controller II.
5. The second two 98 boxes must be connected to channel 2 of the splitter. Address the third 98 box
(first 98 box on channel 2) as pumps 1 to 8; address the fourth 98 box (second 98 box on channel 2)
as pumps 9 to 16.