Section 2: Installation IEI MiniMax 3 Installation/Programming Manual
2.6 Connect a Secured Series Front End (SSFE) Reader to the Door Control
Module
The Max 3 supports IEI Secured Series Front Ends, which include keypads, card readers and touch chip readers. These are connected
to to the Front End terminal strip TS5. You can connect up to two readers to each Door Control Module, for In/Out operation by
simply wiring them in parallel (both readers to the same four screw terminals). Each screw terminal is labeled with a wire color (black,
red, white/black and white yellow). These correspond to the color wire on the wire harness supplied with the front end reader.
You must use a four-conductor stranded cable with overall foil shield to connect the Front End to the Door Control Module. You also
must terminate the drain wire (the bare wire inside the foil shield), from the front end cable, to the fast-tab located on the Max 3
Backplane. There is a fast-tab located under each module on the lower edge of the backplane. They are labeled FT1, FT2, FT3 and
FT4. Connect the drain wire from the front ends connected to module one to FT1 and so on. IEI has included four ground cables and
wire-nuts to make this connection.
Do not terminate the drain wire at the Front End Reader. Cut off the exposed drain wire and
wrap the insulation and the foil shield in electrical tape.
Page 14 of 48 Document #: 6055672, Rev 1.0 D1c
Note:
The Max 3 Door Control Module must be configured to operate in Secured
Series Front End Mode. To do this, locate jumper JP2 above terminal strip TS7 and
place the jumper on both pins.
Wire Size vs. Cable Length Chart
Distance
Wire Size
250 Feet
22 AWG
500 Feet
20 AWG
1000 Feet
18 AWG
Note:
If you experience problems with
front end communications after connecting
a second keypad or reader, wiring a
separate ground wire from each keypad to
the black terminal on the Max 3 DCM may
solve the issue. If this does not fix the
problem contact IEI Technical Support.
Figure 8: Connect Secured Series Front End to DCM