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CALLMASTER® V Telephone Console User’s Guide 555-233-735 Issue 1
Telephone Installation 10
Important Safety Warnings for Installation
When this product is located in a separate building from the telephone
communications system, a line current protector MUST be installed at the
entry/exit points of ALL buildings through which the line passes. Only one
protector is needed at each installation point.
For 2-wire installations, the following is recommended:
• Lucent Technologies 4-type protectors
• ITW LINX LP-type protectors.
Lucent Technologies 3BIC (carbon block) or Lucent 3BEW (gas tube)
protectors are also acceptable in a 2-wire installation.
INSTALLATION WARNING
(for the CALLMASTER V)
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MODULAR WALL JACK WIRING
Pin
Pair Name
Description
4
5
1
1
BL-W
W-BL
2-Wire (Tip)
2-Wire (Ring)
FAILURE TO FOLLOW THESE INSTRUCTIONS CAN CAUSE DAMAGE
TO THE TELEPHONE OR CAUSE THE ASSOCIATED DEFINITY ECS
CIRCUIT PACK TO REMOVE POWER TO THE TELEPHONE. IN EITHER
CASE, THE TELEPHONE WILL NOT FUNCTION CORRECTLY.
For 2-wire operation, if you need to plug the telephone into a 4-pin or 6-pin
wall jack, instead of a standard 8-pin modular jack, see the Modular Wall
Jack Wiring table above to ensure that the wires from the 4-pin or 6-pin
wall jack are connected to the correct pins on the telephone LINE jack.
Two-wire installations must have only PBX connections on pair 1.
1
2
2
2
W-O
O-W
Record Output
Record Output