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DEFINITYEnterpriseCommunicationsServerandSystem75andSystem85
Terminals and Adjuncts Reference
555-015-201
Issue 11
December 1999
The 7400 Series Voice Terminals
11-40The 7405D Voice Terminal
11
Color Options
The 7405D voice terminal was available in black and misty cream. Since it has
become discontinued, it is only available in black.
Distance Limitations
The maximum allowable distance the 7405D voice terminal can be located from
the switch cabinet is shown in the following table.
Note:
These ranges can be extended to 5,000 feet (1524 m) for 24 AWG wire and 4,000 feet
(1219 m) for 26 AWG wire with the use of a Data Link Protector. Refer to EXPOSED PORT
PROTECTION.
Power Requirements
The 7405D voice terminal receives power from the system and does not require
any external power supply. Additional power is required when the 7405D voice
terminal is equipped with any adjuncts. Refer to the Adjunct Power section
earlier in this manual.
Power Failure Operation
The 7405D voice terminal cannot be used as an emergency station during power
failure transfer conditions.
FCC Registration
The 7405D voice terminal is not FCC registered.
Table 11-7. Distance Limitations for the 7405D Voice Terminal
System Port Board
Nominal Maximum Range in Feet
(Meters) (See Note)
24 AWG 26 AWG
System 85 SN270B
TN754
3,400 (1,034)
3,400 (1,034)
2,200 (671)
2,200 (671)
DEFINITY G2 SN270B
TN754
3,400 (1,034)
3,400 (1,034)
2,200 (671)
2,200 (671)
DEFINITY G1 and
G3, DEFINITY
ECS, and System
75
TN754 3,400 (1,034) 2,200 (671)