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Before You Begin
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1. Cable entry (also behind PCB).
2. Antenna.
3. Central keyhole.
4. PCB.
5. Link to enable/disable front/rear
tamper switch.
6. Lid tamper (rear tamper behind PCB).
7. Bus termination jumper.
8. Addressing button.
9. Fixing holes.
10. Engineering keypad connector
11. Bus cable connector.
12. Sounder.
13. Loudspeaker terminals.
14. Bus address display.
Figure 17 EXP-R10/R30 Radio Expander
