GAI-Tronics 272-001 사용 설명서 - 페이지 11

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1. Wiring Requirements

Pub. 42004-173D

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

Page: 11 of 14

Specifications

General/Environmental

Location (Model 263 IBU) ............................................................Ordinary (non-classified) indoor/outdoor

FCC Registration Number ....................................................................................... ADGUSA-65066-TE-E

Ringer Equivalence Number (REN) ....................................................................................................... 0.4B

IC Certification Number (Canada).............................................................................................. 822 4541 A

Load number (LN) (Canada)...................................................................................................................... 14

Connecting method (Canada)............................................................................................................. CA11A

Operating temperature range................................................................ -40° F to +140° F (-40° C to +60° C)

Relative humidity...................................................................................... 95% (non-condensing) maximum

Maximum safe wiring distance between IBU and I.S. telephone

Standard wire types............................................................................................................................... 1 mile

Using GTC 60059-001 conductor.....................................................................................................1.5 miles

Using GTC 60021-301 conductor.....................................................................................................1.5 miles

Wiring

Construction................................................................................................................................ Twisted pair

*Type ................................................................................................................................................ Shielded

Conductor size (minimum) ...............................................................................................................24 AWG

Wiring loop resistance (maximum)..................................................................................................275 ohms

Wiring capacitance (maximum)........................................................................................................ 0.316 uF

*Shielded cable is required where multiple I.S. telephone wires are routed together.

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

03/06