54 Emergency telephones
Testing the emergency telephones
The emergency telephones must be tested with the power OFF
at the KSU and Trunk Module.
Pick up the receiver of the emergency telephone.
2. Listen for the dial tone.
If you hear a dial tone, both the emergency telephone and
the line are functioning properly.
If you hear no dial tone:
Verify that power to the KSU and Trunk Module(s) is
OFF.
Check that the external line and emergency telephone
connections have been made correctly.
Ensure that the emergency telephone is not faulty, by
connecting it directly to the external line and listening for
dial tone.
Verify that there is dial tone on lines 1 and 2 of the KSU
and on line 1 of the Trunk Module.
3. If all previous steps have been verified and there is still no
dial tone at the emergency telephone, replace the KSU if the
emergency telephone is connected to the KSU, or replace
the Trunk Module if the emergency telephone is connected to
the Trunk Module.
Modular DR5 Installer Guide
Summary of Contents for DR5
Page 2: ......
Page 45: ...Module installation 39 Installing the cable troughs Modular DR5 Installer Guide ...
Page 76: ...70 Telephone relocation and replacement Modular DR5 Installer Guide ...
Page 164: ...158 Set Copy ...
Page 244: ...238 Problems with optional equipment Modular DR5 Installer Guide ...
Page 266: ...260 Glossary Modular DR5 Installer Guide ...
Page 294: ...12 Call Display services Modular DR5 System Coordinator Guide ...
Page 516: ...234 Glossary Modular DR5 System Coordinator Guide ...
Page 526: ...244 Index Modular DR5 System Coordinator Guide ...
Page 529: ... I J I I I I I I ...