- 1). Disable your security system to avoid triggering a false alarm.
- 2
A telephone cableRJ-11 telephone cable image by TekinT from Fotolia.com
Locate the main control panel of your Ademco security system. It should have a telephone cable connecting it to a phone outlet. - 3). Disconnect the control panel's phone cable from the phone outlet.
- 4). Plug the DSL filter into the phone outlet.
- 5). Plug the security system's telephone cable into the telephone jack on the DSL filter.
- 6). Re-enable your security system.
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