GAI-Tronics 262-001 Instruction Manual - Page 13

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1. Wiring Requirements

Model 262-001 and 272-001 Intrinsically-Safe Telephones

Model 262-001 Indoor /Model 272-001 Outdoor I.S. Telephones

Electrical /Acoustical

Electrical specifications (nominal)............................................................................................ 12 V, 12 mA

Ringer performance (typical) ............................................................................................... 98 dB @ 10 feet

Frequency (adjustable at the IBU) ........................................................................ 1–8 kHz (typical)

Ring signal loss (18 AWG).............................................................................................. -4 dB/mile

Signaling ............................................................................................................................................. DTMF

Transmission path (2-conductor) ................................................................................................. Full duplex

Microphone ............................................................................................................ Dynamic noise-canceling

Earpiece......................................................................................................... Hearing aid compatible (HAC)

Output (0 dBm @ IBU TELCO Line) ........................................................... 105 dB SPL @ 1 kHz

Audio signal loss (18 AWG)......................................................................................... -1.3 dB/mile

: Must be connected in accordance with GAI-Tronics drawing 73242 (Pub. 42004-380).

OTE

Mechanical

Housing construction ............................................................................................ Glass-reinforced polyester

Housing dimensions

Model 262-001....... ....................... 8.02 W × 9.52 H × 6.86 D inches; (203.7 × 241.8 × 174.2 mm)

Model 272-001............................. 9.39 W × 13.16 H × 7.46 D inches; (238.5 × 334.3 × 189.5 mm)

Enclosure rating (UL)

Model 262-001...................................................................................................................... Type 12

Model 272-001...................................................................................................Type 3R (rainproof)

Weight

Model 262-001........................................................................................................5.0 lbs. (2.27 kg)

Model 272-001...................................................................................................... 10.0 lbs. (4.53 kg)

Approvals

When connected according to GAI-Tronics drawing 73242 (Pub. 42004-380):

UL/cUL .............................................................................................Class I, Div. 1, Groups A, B, C, and D;

d:\standard ioms - current release\42004 instr. manuals\42004-173d.doc

03/06

including handset; 3.86 D (98 mm), without handset

Class II, Div. I, Groups E, F, and G; Class III

Pub. 42004-173D

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