Rockwell Automation 1771-QDC, D17716.5.93(Passport) PLASTIC MOLDING MODULE - Manual (Page 37)

Install the QDC Module
Chapter 2
2-5
Use plastic keying bands, shipped with each I/O chassis, for keying the
backplane connector to accept only one type of module. Do this to prevent
inadvertent installation of the wrong module into the designated slot
location.
Important: You must use the following slot location in the I/O chassis for
the QDC module because this is the address used by your Pro-Set 600
software to communicate with the QDC module.
rack 0
module group 0
slot
0
The QDC module is slotted in two places on the rear edge of the circuit
board. The position of the keying bands on the backplane connector must
correspond to these slots to allow insertion of the module.
Place keying bands between the following terminal numbers labeled on the
backplane connector of your I/O chassis (see Figure 2.2):
between 20 and 22
between 26 and 28
Figure 2.2
Keying Positions
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
36
12676
Keying
Bands
1771ĆQDC
Key the I/O Chassis