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.General
    SAK1 V A D T series monitoring optical terminal equipment can transmit simultaneously 1, 2, 4 or more up to 68 video, audio, digital or Ethernet signals via a single fiber. It is mainly applied in monitor and video conference for government authorities, transportation, public security, bank, customs, middle-/large-size marketplace, and mine etc. The unit features simple operation, stability, reliability, large dynamic range and high performance/price ratio. 
    The whole unit consists of optical transmitting and receiving components, with the audio part applying advanced digital technology and the video part applying uncompressed transmission. With modular design, the unit can be used independently or inserted into a rack or customized according to user requirements. 

 Features
1. Transmission part：
a. Optical transmission wavelength：1310nm or 1550nm
b. Output power：-20dBm~ + 3dBm
c. Output optical interface：FC/PC
2. Receiving part：
a. Minimum input power of receiver：-32dBm
b. Maximum input power of receiver：-9dBm
c. Optical dynamic range：>22dB
d. Input optical interface：FC/PC
 Electrical characteristics (transmission and receiving)
1. Visual：
a. Input output level：IVP-P
b. Input output impedance：75Ω
c. Input/output interface：Q9
2. Audio：
a. Input output level：0dBm
b. Input output impedance：600Ω
c. Input/output connector：ST/PC
Channel characteristics
1. Video：
a. Differential gain：<0.7%
b. Differential phase：<0.7°
c. Frequency response：<±0.5dB
d. Signal-noise ratio：>60 dB (weighted)
2. Audio
a. Total harmonic distortion：<0.5%
b. Frequency response：<±0.5 dB
c. Signal-noise ratio：> 60 dB (weighted)
Control data interface
RS-232：Velocity DC-115, 2kbps
RS-485：Velocity DC-115, 2kbps
Other parameters
Power supply：220VAC   0.25A
Working temperature：-40℃~70℃
Storage temperature：-55℃~80℃
Humidity：0.95% (no condensation)
Dimensions：180×120×25mm