Data Sheet

746C
SERIES
MULTIMODE
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 (62/125µ).........................8 dB
Maximum Distance .............................2 Km
(Limited by Fiber Dispersion)
Connector .............................................. ST
Temperature (Operating)
-40°C to +75°C, non-condensing
Power Supply:
Module : 12 VDC (AFI Part#: PS-12D)
Rackcard: SR20/2
Size:
Module-……………....81/8” x 41/8“ x 11/2 ”
Rack Card-2 rack slots.…….. 6½” x 5” x 2”
Maximum Loading:....7 Cards per SR-20/2
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 to RR-746C
5/06
FOUR-CHANNEL DIGITAL VIDEO & MULTI-PROTOCOL
RS485/RS422/RS232/MANCHESTER & CONTACT
CLOSURE SYSTEM
The American Fibertek 746C Series transmits four channels of high-quality
digitized video and one channel of multi-protocol data (RS485 (2 wire or 4
wire) or RS422 or RS232 or Manchester) and a contact closure on one
multimode 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-20H/2
(
redundant
p
ower su
pp
l
y)
.
MT-746C
or
RT-746C
MR-746C
or
RR-746C
ONE
MULTIMODE
FIBER
4 VIDEO
INPUTS
4 VIDEO
OUTPUTS
RS485 or
RS422 or
RS232 or
Manchester and
Contact Closure
RS485 or
RS422 or
RS232 or
Manchester and
Contact Closure