American Fibertek MT-746C-SL, MR-746C-SL, RT-746C-SL, RR-746C-SL Specsheet
FOUR-CHANNEL DIGITAL VIDEO & MULTI-PROTOCOL
RS485/RS422/RS232/MANCHESTER & CONTACT
CLOSURE SYSTEM
Features:
♦ Compatible with NTSC, (RS – 170A &
RS –343A), PA
♦ and SECAM
♦ Diagnostics: Video, Data, OLI, DC
Power and Digital Frame Sync
♦ Full Color Transmission
♦ RS485/422/232 Two Way Data
♦ Real Time Video Transmission
♦ Serial Digital Transmission
Specifications:
Video:
I/0 Level ...............................1 Vp-p (±3 dB)
I/0 Impedance .............................. 75 Ohms
Bandwidth .........................................7 MHz
Differential Gain ....................................2 %
Differential Phase.................................0.7 °
SNR (Unified Weighted).....................55 dB
Connector ........................................... BNC
Data:
Number of Channels........... 1 (Full Duplex)
Interface….485(2 or 4 Wire)/RS422/RS232
Data Format..............Asynchronous, Serial
Data Rate............................ DC to 115 Kbs
Connector ...............5 Pin Screw Terminals
Contact Closure
Input...................Switch Closure to Ground
Output ......................................Dry Contact
Response Time.................................. 2 mS
Max Voltage..............100 VDC or Peak AC
Max Current ....................................... 0.5 A
Connector……………………Terminal Block
Optical
Wavelength..........................1310/1550 nm
Loss Budget (9/125µ).........................15 dB
Connector ........................................ FC/PC
Temperature (Operating)
-40°C to +75°C, non-condensing
Power Supply:
Rack Card – AFI SR 20/2
Size:
Rack Card :
2 rack slots .............................6½” x 5” x 2”
Ordering information:
RT=Rack Card Transmitter – Video Source
RR=Rack Card Receiver –Control Site
MT=Module Card Transmitter – Video Source
RR=Module Card Receiver –Control Site
Example:
MT-746C-SL to RR-746C-SL
:
The American Fibertek 746C-SL Series transmits four channels of highquality digitized video and one channel of multi-protocol dat a (RS485 (2 wire
or 4 wire) or RS422 or RS232 or Manchest er) and a contact closure on one
single mode optical fiber at 1310 and 1550nm. Designed to be completely
transparent to all camera and monitor manufacturers, this system requires no
field adjustments at installation or additional maintenance thereafter.
Diagnostic indicators provide a quick visual indication of system status.
Equipment may be ordered as stand alone modules or rack cards that are
mounted in the American Fibertek Card Cages: SR-20/2 or SR-20R/1.
4 VIDEO
INPUTS
MT-746C-SL
or
RT-746C-SL
RS485 or
RS422 or
RS232 or
Manchester and
Contact Closure
ONE
SINGLEMODE
FIBER
746C-SL
SERIES
SINGLE MODE
OUTPUTS
MR-746C-SL
or
RR-746C-SL
RS485 or
RS422 or
RS232 or
Manchester and
Contact Closure
4 VIDEO
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