ARMY MIL-T-49110 (1)-1990 TELEPHONE SET TA-838( ) TT《TA-838() TT型电话机》.pdf
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1、/ MIL-T-49330 (3) 58 W 999740b 0238386 7 INCH-POUND MIL-T-49110(CR) AMENDMENT 1 26 January 1990 MILITARY SPECIFICATION TELEPHONE CET TA-8380/TT This amendment forms part of MIL-T-49110(EL), dated 12 April 1977 and ia approved for use by the Communications-Electronics Command, Department of the Army
2、and is available for use by all Departments nd Agencies of the Department of Defense. PAGE 1 2.1: Delete the following in their entirety: “NN-P-71, QB-C-781, PPP-E-585, PPP-B-601, PPP-B-621, PPP-E-636, PPP-E-640, PPP-C-320, PPP-S-760, PPP-T-97, MIL-P-116, MIL-P-19644, MIL-P-26514, MIL-CTD-129, MIL-C
3、TD-147.“ PAGE 7 3.8.5.3: Delete and substi tute: “3.8.5.55 Ring current. any frequency between 15 and 25 Hz, the equipment shall draw 10.0 ma maximum and the audible and visual alarm shall be activated (see 4.9.18). II With a 60 volt rms sine wave input at 3.8.5.5: Delete and substitute: “3.8.5.5 Of
4、f-hook current. The equipment shall draw a minimum of off-hook current of 30 ma when operated in a 950 ohm loop with a 48 V DC supply and it ma when operated in a 440 ohm loop with a 26 V DC supply (see 4.19.181.“ PAGE 9 3.11 and 3.11.1: Delete in their entirety. 4.2c(l) and (2i: Delete and substitu
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