Home > Shop Brands > GE Security >

  GE Security GEC-B7748AVRRST2L SM - 2-Way Video & 2-Way 2-Channel Audio RX

GE Security GEC-B7748AVRRST2L SM - 2-Way Video & 2-Way 2-Channel Audio RX


Our Price : $1,826.73

Product Code: GEC-B7748AVRRST2L


The B7748AV series high performance, broadcast-grade fiber transmission system supports two-way composite video and two-way 2-channel line-level audio and contact closure. The all-digital processing platform features 24-bit dual channel audio processing.

Digital processing of the video signal along with a video SNR >65 dB assures clean, noise-free video at the receiver. Digital processing of the audio signal along with an audio SNR >90 dB allows the audio outputs to drive balanced or unbalanced loads and maintain constant audio levels.

The links employ an extensive set of built-in diagnostic tools including video and audio test generators and LED displays. The video test pattern generator allows failures to be diagnosed from the monitor while the LEDs monitor video and audio status and optical signal strength.



Channels: 1 duplex
Format: NTSC and PAL
Input/Output Signal: 1.0 V pk - pk
Bandwidth: 7.5 MHz
Signal-to-Noise Ratio: >65 dB
Input/Output Impedance: 75 ohms
Differential Phase: 0.7
Differential Gain: 1%


Channels: 2 duplex
Input Signal Level: 17.4 V p-p, +18 dBu max.
Imput Impedance: 600 ohms or 100k ohms
Frequency Response: 20 Hz to 20 kHz
Output Signal Level: 17.4 V p-p, +18 dBu max.
Output Impedance: 30 ohms unbalanced, 60 ohms balanced
Audio Sampling Rate: 52 kHz
Signal-to-Noise Ratio: >90 dB
Total Harmonic Distortion: <0.006%
Test Signal: 1 kHz

Relay/Contact Closures:

Channels: 2 duplex channels
Relay/Contact Rating: 0.5 A @ 30 VDC Optical
Mode: Single Mode
Optical Budget: 18 db
Emitter: Laser
Wavelength: 1310 and/or 1550 nm (depending on model)
Operating Distance: Up to 37 mi (60 km) (depending on model)
Modulation Type: Digital
Gain Control: Optical Automatic Gain Control


Input Power: 13.5 VDC regulated
Power Consumption: 6.75 W
Current Requirement: 500 mA
Power Factor: 4
Protection: Solid-state short circuit protection


Operating Temperature: -40 to 167 F (-40 to 75 C)
Maximum Humidity: 95% relative, noncondensing Standards
Emmissions: FCC Part 15, ICES-003, AS/NZS 3548, EN55022
Immunity: ENV50204, EN61000-4-2, -3, -4, -5, -6, -11
Safety: UL 1950, CAN/CSA 22.2, NO. 950-95
Laser Safety: 21CFR1040, EN60825-1, -2


Dimensions: 2 slots (2.0 ")
Weight: 1.2 lbs (0.54 kg)
Construction: Aluminum

R: Product Type-Receiver
ST: Connector Type-ST Type
2: No. of Fibres: 2 Fibers
L: Optional Wavwlength- Add L here only if ordering High Order Wavelength
  • Two-way transmission over one or two single-mode fibers
  • 9-bit video processing
  • 24-bit audio processing
  • 20 Hz to 20 kHz frequency response
  • Unbalanced audio
  • Relay/contact closure - 2 duplex channels
  • 13 dB optical budget
  • Video SNR >65 dB
  • Audio SNR >90 dB
  • 52 kHz audio sampling rate
  • THD < 0.006%
  • Built-in audio and video test generator
  • On-screen monitor displays

Share your knowledge of this product with other customers... Be the first to write a review

Browse for more products in the same category as this item:

Shop Brands > GE Security

Enter your email for a chance to WIN $100 Amex Gift Card.

Please Enter Your Email Address

*One entry per household please