Difference between revisions of "LS-518"
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| + | ==Overview== | ||
| + | The LS-518A/SIC is identical to the LS- 519A/SIC in every respect except for the quantity of station selector switches. The LS-518A/SIC has one 10 pushbutton selector switch assembly and is capable of operating in conjunction with up to 10 other communication stations in any combination regardless of type. The LS-519A/SIC has two 10 pushbutton switch assemblies and is capable of operating in con-junction with up to 20 other intercommunication stations in any combination regardless of type. | ||
| + | The LS-518A/SIC or the LS-519A/SIC, hereafter referred to as the 'master station, provides two-way voice communications by way of input/output audio devices which may be either microphones, handsets, or loudspeakers. The loudspeaker contained in the master station, which may be used for talk/listen, is the Type LS-445/U. A receptacle is provided on the front panel which will accept either the type M-132/SIC microphone or the type H-351A/SIC headset. In addition to the station selector switches, MIC OR HEADSET connector, and the loudspeaker, the master station front panel contains a release (REL) lamp, CALL lamp, BUSY lamp, a HANDSFREE-NORMALPRESS TO TALK switch, a DIMMER control switch, and a VOLUME control switch for incoming loudspeaker audio. | ||
| − | ===Reference Files | + | ===LS-518=== |
| + | [[File:LS-518.png|400px]] | ||
| + | [[File:LS-518-1.png|400px]] | ||
| + | |||
| + | |||
| + | ===LS-519=== | ||
| + | [[File:LS-519.png|400px]] | ||
| + | [[File:LS-519-1.png|400px]] | ||
| + | |||
| + | |||
| + | ===Test Fixture=== | ||
| + | [[File:LS-518_Test_Fixture.png|400px]] | ||
| + | |||
| + | |||
| + | ==Technical Details== | ||
| + | ;Power Requirements | ||
| + | :Single phase, 24.8 watts @ 0.9p.f. 115 ±6 volts ac @ 60 ± 3Hz., 0.24 amperes nominal. | ||
| + | ;Heat Dissipation | ||
| + | :75 BTU/HR @ full rated output. | ||
| + | ;Ambient Operating Temperature | ||
| + | :0°C to 650C. | ||
| + | ;Relative Humidity | ||
| + | :95% maximum. | ||
| + | ;Output | ||
| + | :3 watts @ 5% maximum THD (70 volts rms into 1667 ohms). | ||
| + | ;Input Sensitivity | ||
| + | :8.7mv into 150 ohm for mic or handset. 4mv into 16 ohm for speaker input. | ||
| + | ;Amplifier Gain | ||
| + | :78dB voltage gain @ 1,000z. (mic input). | ||
| + | ;Amplifier Frequency Response | ||
| + | :400 to 5,000Hz ±2dB. | ||
| + | ;Rated Loudspeaker Output; (1,000 Hz) | ||
| + | :99dB SPL (Ref. 0.0002 dynes/cm2) @ 2 ft. from front panel. | ||
| + | ;Rated Loudspeaker Input, when used as a microphone (1,000 Hz) | ||
| + | :86dB SPL (Ref. 0.0002 dynes/cm2) @ plane of front panel. | ||
| + | |||
| + | |||
| + | ==Reference Files== | ||
;{{pdf|TM 11-5830-258-14.PDF|TM 11-5830-258-14}} | ;{{pdf|TM 11-5830-258-14.PDF|TM 11-5830-258-14}} | ||
:OPERATOR'S, ORGANIZATIONAL, DIRECT SUPPORT, AND GENERAL SUPPORT MAINTENANCE MANUAL | :OPERATOR'S, ORGANIZATIONAL, DIRECT SUPPORT, AND GENERAL SUPPORT MAINTENANCE MANUAL | ||
Latest revision as of 04:26, 10 December 2013
Overview
The LS-518A/SIC is identical to the LS- 519A/SIC in every respect except for the quantity of station selector switches. The LS-518A/SIC has one 10 pushbutton selector switch assembly and is capable of operating in conjunction with up to 10 other communication stations in any combination regardless of type. The LS-519A/SIC has two 10 pushbutton switch assemblies and is capable of operating in con-junction with up to 20 other intercommunication stations in any combination regardless of type.
The LS-518A/SIC or the LS-519A/SIC, hereafter referred to as the 'master station, provides two-way voice communications by way of input/output audio devices which may be either microphones, handsets, or loudspeakers. The loudspeaker contained in the master station, which may be used for talk/listen, is the Type LS-445/U. A receptacle is provided on the front panel which will accept either the type M-132/SIC microphone or the type H-351A/SIC headset. In addition to the station selector switches, MIC OR HEADSET connector, and the loudspeaker, the master station front panel contains a release (REL) lamp, CALL lamp, BUSY lamp, a HANDSFREE-NORMALPRESS TO TALK switch, a DIMMER control switch, and a VOLUME control switch for incoming loudspeaker audio.
LS-518
LS-519
Test Fixture
Technical Details
- Power Requirements
- Single phase, 24.8 watts @ 0.9p.f. 115 ±6 volts ac @ 60 ± 3Hz., 0.24 amperes nominal.
- Heat Dissipation
- 75 BTU/HR @ full rated output.
- Ambient Operating Temperature
- 0°C to 650C.
- Relative Humidity
- 95% maximum.
- Output
- 3 watts @ 5% maximum THD (70 volts rms into 1667 ohms).
- Input Sensitivity
- 8.7mv into 150 ohm for mic or handset. 4mv into 16 ohm for speaker input.
- Amplifier Gain
- 78dB voltage gain @ 1,000z. (mic input).
- Amplifier Frequency Response
- 400 to 5,000Hz ±2dB.
- Rated Loudspeaker Output; (1,000 Hz)
- 99dB SPL (Ref. 0.0002 dynes/cm2) @ 2 ft. from front panel.
- Rated Loudspeaker Input, when used as a microphone (1,000 Hz)
- 86dB SPL (Ref. 0.0002 dynes/cm2) @ plane of front panel.
Reference Files
- OPERATOR'S, ORGANIZATIONAL, DIRECT SUPPORT, AND GENERAL SUPPORT MAINTENANCE MANUAL
- INTERCOMMUNICATION STATIONS
- LS-518A/SIC (NSN 5830-01-018-1202)
- LS-519A/SIC (NSN 5830-01-020-6280)
- TEST SET, INTERCOMMUNICATION
- TS-3990/SIC (NSN 6625-01-126-4886)
- 28 JUNE 1983