MDE-4318D Competitive Pump and CRIND (CPC) Hardware/Software Start-up and Service Manual · May 2010
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Installation Overview
PA0338X00X D-Box Installation
D-Box Board (T20488-G2)
The T20488-G2 Board provides four 4-channel (totally 16 channels) MTA connectors for field
wiring. The four MTA connectors on this board are capable of driving 16 Tokheim RS-485
DPTs. When a Tokheim site is using a TED, the T20488-G2 is field wired directly to the TED.
The TED then communicates to the DPTs.
Figure 2-5: D-Box Board (T20488)
To the DPT/TED
Field Wiring
Any unused
loop must be
cut and capped
The connection to both the TEDs and the Model 69 Interface box are both through a 4-pin
field wired connector with the following pin-out:
1
-RS-485
2
+RS-485
3
DC Ground
4
Chassis Ground