Zenitel Vingtor Stentofon VSP 12-Way, Техническое руководство

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VSP 12-Way Batteryless Telephone System
Technical Manual
A100K10873
6 Specifications
6.1 Electrical Specifications
Built-in system amplifier
Operating voltage (C7 battery): 39 – 20 VDC
Operating voltage (external supply): 24 VDC
Frequency range (-3dB): 180 – 4500 Hz
S/N ratio:
<
-55 dB
TDH-N: < 1%
Amplifier input impedance: Z = 213 ohm @ 1 kHz
Z = 180 ohm @ 250 Hz
(R = 52 ohm)
Microphone signal level: 5 - 10 mV
Microphone impedance: 135 ohm @ 1 kHz
Amplifier output impedance: Z = 92 ohm @ 1 kHz
Z = 60 ohm @ 250 Hz
(R = 1.5 ohm)
Speaker signal level: 0.7 V
Speaker impedance: 135 ohm @ 1 kHz
Compass safety distance: 155 cm
6.2 Certificates
The system components have a light, robust and corrosion resistant
construction, and conform to the following Product Specifications:
● IEC 533, 2
nd
edition, June 1996;
«EMC of Electrical and Electronic Installation in Ships and of Mobile
and Fixed Offshore Units»
● Det Norske Veritas (DNV), Certification Notes no. 2.4;
«Environment test Specification for Instrumentation and Automation
Equipment»
Optional EMC requirements
● IEC 945, February 1995;
«Maritime navigation and Radio Equipment and Systems - general
requirements, methods of testing and required test results».
CENELEC
● EN50081-1 January 1992;
«Generic emission standard, Part 1: Residential, commercial and
light industry»
● EN50082-2 March 1995;
«Generic immunity standard, Part 2: Industrial environment»
Test reference:
Report No.: 96-1196
Issued by: DET NORSKE VERITAS AS
Report No.: S97 0662a and S97 0662b
Issued by: Jydske EMC Lab A/S, Denmark