
2. Technical Description
496964 Page 17
9954 Hardwired Expander PCB Layout
The 9954 hardwired expander provides connectors for eight CCL, FSL or EOL
zones. Figure 6 shows the layout of the PCB.
0V 12V CLK DATA
FSL
EOL
AT5
AT6
CCT5
CCT6
AT7
AT8
CCT7
CCT8
2
3
4
AT1
AT2
CCT1
CCT2
AT3
AT4
CCT3
CCT4
FSL
EOL
Four-wire CC
Two-wire FSL
Two-wire EOL
1
2
3
4
5
7
6
1. Zone connectors 5. Address jumpers
2. Lid tamper switch 6. Zone connectors
3. Spare connectors (not connected) 7. CCL/FSL/EOL
4. Keypad bus
Figure 6. 9954 Expander
See the wiring diagram supplied with the 9954 hardwired expander for more
details.
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