Rice Lake 920i Digital I/O Card - Manual

December 2010 69087
Digital I/O Expansion Card Installation Instructions
PN 67601
Use the following procedure to install digital I/O
expansion cards in 720i , 820i , and 920i indicators:
1. Disconnect indicator from power source.
Disconnect power before removing
indicator backplate.
2. Place indicator face-down on an antistatic
work mat. Remove screws that hold the
backplate to the enclosure body.
Use a wrist strap to ground yourself and
protect components from electrostatic
discharge (ESD) when working inside the
indicator enclosure.
3. Carefully align the large option card
connector with connector J5 or J6 on the
920i
CPU board, J6 on the
820i
CPU board, or J12
on the
720i
CPU board. Press down to seat the
option card in the CPU board connector.
4. Use the screws and lock washers provided in
the option kit to secure the other end of the
option card to the threaded standoffs on the
CPU board (see Figure 1).
J6
Figure 1. Installing Option Card Onto 920i CPU Board
5. Make connections to the option card as
required. Figure 2 shows connections
available on option card connector J3 (up to
eight digital I/O channels). Connector J2
provides all 24 channels using a 50-pin ribbon
cable (see Table 1).
Use cable ties to secure loose cables inside the
enclosure. Once cabling is complete, position
the backplate over the enclosure and reinstall
the backplate screws.
Use the torque pattern shown in the indicator
Installation Manual to prevent distorting the
backplate gasket. Torque screws to 15 in-lb
(1.7 N-m).
GND
J3
DIO 1 DIO
3
DIO 4 +5V +5V DIO 5 DIO 6 DIO 7 DIO 8 GND DIO 2
1
50
J2
J1
1 12
49
2
Figure 2. Digital I/O Expansion Card
Table 1. J2 Ribbon Cable Connections
Pin Signal Pin Signal
1 DIO24 27 DIO11
3 DIO23 29 DIO10
5 DIO22 31 DIO9
7 DIO21 33 DIO8
9 DIO20 35 DIO7
11 DIO19 37 DIO6
13 DIO18 39 DIO5
15 DIO17 41 DIO4
17 DIO16 43 DIO3
19 DIO15 45 DIO2
21 DIO14 47 DIO1
23 DIO13 49 +5V
25 DIO12 even pins GND
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