Troubleshooting IPE2500A and IPE2500A-MLS Paging Encoder/Desktop Controller
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Problem Possible Solution
No or low transmit audio Ensure that the leased line being used does not have excessive line losses.
LOTL never/always on. Ensure that the DCLOTL threshold has been properly set using the internal
diagnostics.
No line current Ensure that the dc module can output current by using the internal
diagnostic.
Ensure that the line between the desk set and dc adapter has dc continuity
Not able to change the
selected frequency.
If direct DTMF is enabled, ensure that the SELECT button is first pressed
to enter the frequency selection mode.
If direct DTMF is enabled and this is an IPE2500A-MLS, frequency
selection is not possible except through the use of programmable buttons.
Fuse Replacement
CAUTION
For continued safe operation, replace fuses with the same type.
Fuses F1 and F2 are Bussmann C515S 1.25A SB 2AG.
Fuse F401 is Bussmann GMA 1A 5X20MM.
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