Toa VS-900DI, Инструкция по эксплуатации

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9. SPECIFICATIONS
[VS-900DI]
Power Source 24 V DC ±10%/1 A, 2-pole screwless terminal* 2
Maximum Cable Length 1.5 km (including the additional master station line from the VS-900DI) when
to Exchange the cable guage is AWG22
Maximum Number of 4 cards per exchange, 64 cards per system (16 tie-lined exchanges)
Connectable VS-900DI
Cards
Function Key Input One each of [C], [PTT], [Xfer], and [Test] keys, dry contact, 5 V DC/0.5 mA,
contact resistance: 50
Ω
or less, 8-pole screwless terminal* 2
Commuication Line 1 line for VS-900 exchange (VS-900MS card) and 1 line for MS-900 master
station, 1 6-position/4-contact modular jack for each line
In-use Indication Output Open collector output, 24 V DC/approx. 100 mA, 2-pole screwless terminal* 2
Electret Microphone Microphone sensitivity: –75 to –65 dB* 1 , phantom power supply (power supply
Input can be cut off), 2-pole screwless terminal* 2
Speaker Output Speaker impedance: 8
Ω
, power output: 1 W maximum, 2-pole screwless
terminal* 2
Headset Connection Microphone sensitivity: –75 to –65 dB* 1 , speaker impedance: 200 to 400
Ω
,
detection jack contact input [Det.]: 5 V DC/10 mA, contact resistance: 10
Ω
or
less, 8-pole screwless terminal* 2 (Headset can also be turned on/off using the
manual switch instead of the jack contact input.)
PC Interface RS-232C D-sub connector (9 poles, female type)
Note: The design and specifications are subject to change without notice for improvement.
• Accessories
Ferrite clamp SFC-8 ................................... 2
Modular cord (3 m) ..................................... 1
* 1 0 dB = 1 V(rms)
* 2 Usable cable
Bared-core length: 5 – 6 mm
Cross section area: 0.14 – 2.5 mm
2