Installation guide

TROUBLE ON ONE TELEPHONE
Dialing
Symptom: Off-premises telephone has no dial tone and cannot receive calls.
Possible Cause
1.
2.
3.
4.
5.
6.
Voice terminal jack in the
control unit is faulty.
Wiring between the off-
premises telephone and control
unit is faulty.
2.
3.
4.
5.
6.
Local telephone company line
is faulty.
Off-premises telephone is
defective.
Off-Premises Telephone
Interface is defective.
Control unit is defective.
Recommended Action
1. Test the jack by plugging a MERLIN system
voice terminal into the jack.
Make sure wiring is not damaged and
connectors are plugged in securely between
these points:
● Between the off-premises telephone and
network interface
●
Between the network interface for the off-
premises line and the Off-Premises Line
Input jack on the Off-Premises Telephone
Interface
● Between the To Voice Terminal Module
jack on the Off-Premises Telephone
interface and a voice terminal jack on the
control unit
Plug a basic telephone into the network
interface or jack field line jack at the control
unit.
If there is no dial tone, have the local
telephone company check the line.
Unplug the suspect off-premises telephone.
Plug in a telephone known to be working
properly. If the trouble does not appear,
replace the suspect telephone.
If the trouble still exists, replace the Off-
Premises Telephone Interface.
If a new module does not solve the problem,
the control unit probably needs repair.
A2-6