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7405D Voice Terminal
NOMINAL MAXIMUM RANGE
IN FEET (METERS) (SEE NOTE)
SYSTEM PORT BOARD
24 AWG 26 AWG
SYSTEM 85 SN270B 3,400 (1,034) 2,200 (671)
TN754 3,400 (1,034) 2,200 (671)
DEFINITY G2 SN270B 3,400 (1,034) 2,200 (671)
TN754 3,400 (1,034) 2,200 (671)
DEFINITY G1 & G3 TN754 3,400 (1,034) 2,200 (671)
SYSTEM 75
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 (DLP). 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 of 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.
Hearing Aid Compatible
This voice terminal is compatible with the inductively coupled hearing aids prescribed by the FCC.
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