Lucent Technologies MERLIN LEGEND Release 5.0 Installation Manual page 154

MERLIN LEGEND Communications System Release 5.0
Installation 555-650-140
Installing Telephones and Adjuncts
Connecting Telephones to the Control Unit
If an MLX telephone or analog multiline telephone is in a different
building from the control unit, and is within 1000 ft. (305 m) of the control
unit, connect the telephone to the control unit, using two In-Range
Out-of-Building (IROB) protectors.
Make sure you use an MLX-specific IROB protector for an MLX
telephone, and an analog multiline-specific IROB protector for an analog
multiline telephone.
See the documentation packaged with the IROB protector for complete
installation instructions.
If the single-line or T/R telephone is 1000 ft. (305 m) or further from the
control unit, connect the telephone to the control unit using an
Off-Premises Range Extender (OPRE).
See the documentation packaged with the OPRE for complete
installation instructions.
!
CAUTION:
Take extreme care to make sure that you connect MLX phones only
to MLX modules; a mismatch could damage the ports and cause
them to stop functioning.
Incorrect wiring can result in users not being able to place outgoing
calls. Make sure you use the proper cord. For all GS/LS modules:
Use a D2R cable from an RJ11 jack.
Do not use the Brand-Rex Quad cable from an E66 block.
If you cannot avoid using the Brand-Rex Quad cable, reverse the
tip and ring leads at the E66 block to correct the mismatch.
Issue 1
June 1997
Page 3-59