Operating instructions

TransTel Model TD-824-I Digital Telephone System - General Description - Installation - Programming Forms Manual
Page 16 Version 1.3b October 2005
Includes all versions through G1-a20x
MAXIMUM LOOP RESISTANCE/IMPEDANCE
Digital Key Telephone Less than 40 ohms 26 AWG / 650 feet (200 meters)
Single Line telephone Less than 800 ohms 22 AWG / 2,620 feet (800 meters)
Doorphone Less than 40 ohms
Music Source Input Impedance 600 ohms
Maximum Input 0.775 VRMS
INTERNAL RELAY CONTACTS
Type SPST
Rating 3 AMP, 110VAC/220VAC
Function Door Switch, Music on Hold, etc
CABLE REQUIREMENTS
CO/PABX Line Twisted 1 Pair (2 wires)
Key Telephone Twisted 1 Pair (2 wires)
Doorphone Twisted 1 Pair (2 wires)
Door Switch Twisted 1 Pair (2 wires)
External Music Source Twisted 1 Pair (2 wires)
Single Line Telephone Twisted 1 Pair (2 wires)
Mechanical Specifications (Key Service Unit)
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CABINET DIMENSIONS
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233mm W 76mm D 290mm H
9.17” 2.99" 11.4"
WEIGHT 2.3 Kg (Configuration: 2 x 8)
5.0 lbs
Mechanical Specifications (Battery Back Up Housing)
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CABINET DIMENSIONS
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15.5” W 3.0” D 5.75” H
WEIGHT With Batteries -16 lbs Without Batteries- 4 lbs.
Mounting Screws 12.25” center to center
Environmental Specifications
OPERATING CONDITIONS STORAGE
CONDITIONS
Temperature 0º to 45º C -40º to 66º C
(32º to 113º F) (-40º to 150º F)
Humidity 10 to 95% relative 10 to 95% relative
non-condensing non-condensing