TEC SX4T - B B/W Direct Thermal User Manual page 189

4. INSTALLATION PROCEDURE FOR OPTIONAL EQUIPMENT
5) Connect the expansion I/O cable to CN3 on the Main PC board.
Expansion I/O Cable
6) Secure the expansion I/O board to the rear plate with the two B-3x6 screws removed in Step 4.
7) Connect the expansion I/O cable to CN1 on the expansion I/O board.
Rear Plate
B-3x6 Screw
8) Reassemble the side panel (L) in the reverse order of removal.
9) Perform a loop back check to confirm that the expansion I/O board functions properly.
4.8 EXPANSION I/O INTERFACE BOARD (B-7704-IO-QM)
Expansion I/O Board
4-32
EO18-33012A
Main PC Board
CN3
CN1
Expansion I/O Cable