Module Descriptions, RFL 9508D Digital Section
8.5
PLC TRANSFER TRIP MODULE ADAPTERS
The PLC-TT module requires a Module Adapter. The Module Adapter plugs into the rear of the digital
chassis directly behind the PLC-TT module and provides the appropriate connections for the desired
interface. There are eight types of Module Adapters available for use with the PLC-TT module. These
are listed in Table 8-13. Rear panel views of a typical two-function and four-function PLC-TT module
adapter is shown in Figure 8-12.
Table 8-15. PLC-TT Module Adapters
Part Number
Module Adapter Type
Output Type
105740-2
2 function 48/125V
relay
105740-3
2 function 250V
relay
105740-4
4 function 48/125V
relay
105740-5
4 function 250V
relay
105770-2
2 function 48/125V
solid state
105770-3
2 function 250V
solid state
105770-4
4 function 48/125V
solid state
105770-5
4 function 250V
solid state
The 2-function module adapter occupies three module slots at the rear of the chassis (slots 5 through 7).
The 4-function module adapter occupies six module slots at the rear of the chassis (slots 5 through 10).
If a second 2-function module adapter is used, it must be installed in slots 11 through 13. If a second 4-
function module adapter is used, it must be installed in slots 11 through 16. When a second module
adapter is installed, a ten conductor ribbon cable must be connected from slot 8 of the motherboard to
JP3 of the PLC-TT module. Using a second module adapter allows the logical “OR-ing” or “AND-ing”
of trip inputs, which must be configured by the user using NMS. See Figure 8-13 for a view of this
installation.
RFL 9508D UCC
RFL Electronics Inc.
March 11, 2010
8-30
(973) 334-3100
