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DEFINITYEnterpriseCommunicationsServerandSystem75andSystem85
Terminals and Adjuncts Reference
555-015-201
Issue 11
December 1999
The 7400 Series Voice Terminals
11-7The 7401D and 7401 Plus Voice Terminals
11
Distance Limitations
The maximum allowable distances of a 7401D or a 7401 Plus voice terminal from
the DEFINITY ECS G1, G2, and G3, DEFINITY ECS, System 75, or System 85
cabinet are 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 the Exposed Port
Protection section earlier in this manual.
Power Requirements
The 7401D and 7401 Plus voice terminals receive power from the system and do
not require any external power supply. Additional external power is required when
the 7401 Plus voice terminal is equipped with any adjuncts, such as an external
speakerphone. Refer to the Adjunct Power section earlier in this manual.
Table 11-1. Distance Limitations for the 7401D and 7401 Plus Voice Terminals
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)