AES 7707 - Routine Maintenance and Troubleshooting; Battery and Annunciator Installation; Battery Replacement Procedures

AES 7707 RF Subscriber 44
Part No. 40-7707 Rev. 3a 10/23/2017
13. Maintenance
Once installed and normal operation is confirmed, minimal maintenance is required. Monitoring the automatic
check-in test messages will confirm proper RF operation. Batteries should be periodically tested to be certain they
have sufficient capacity to operate the system.
14. Troubleshooting
The most common causes of an RF failure or trouble are due to:
 Antenna type
 Antenna location
 Coaxial cable
 Coaxial connectors
 Transceiver malfunction
Antennas close to metal or conductive material that block or reflect the transmitted signal are the most common
problems.
Try different locations for the antenna or use a remotely mounted long-range RF antenna. Try replacing the
transmission components, including the coaxial cable, coaxial connectors, or antenna.
Note: No user serviceable components are located on the circuit boards. Defective circuit board units must be
returned to AES. For information on returning units, see the AES Service Procedure under Warranty on page 46.
15. Repair Information
Other than the backup battery, no user serviceable parts are located in the 7707 Subscriber.
16. Battery Replacement Instructions
1. Remove the positive battery lead (red) from the battery.
2. Remove the negative battery lead (black) from the battery.
3. Verify that the POWER LED indicator is NOT illuminated.
4. Remove the battery from the enclosure.
5. Discard the battery in accordance with local disposal codes.
6. Install the new battery into the enclosure.
Note: Observe ¼ in. minimum separation between non-power limited wiring and power limited
wiring.
7. Connect the negative battery lead (black) to the battery.
8. Connect the positive battery lead (red) to the battery.
9. Perform Subscriber power-up and self-test procedure.
17. AES Model 7740 Annunciator Installation Instructions
17.1 Out of the Box
 One Rocker Switch Annunciator with standard ring back
 One Faceplate (red)
 One Gang Back Box (red)
Assembly hardware is included. Wall mounting hardware is not included.
17.2 Installation Instructions
Utilize a standard single-gang mounting box. One gang space is required for each module to be installed. A
standard cover plate is required to cover the assembly.
1. Label the legend sheet for the AES Model 7740.
2. Mount the box securely into the wall.