Overview; Figure 1: 7705Eo-Hd Block Diagram - evertz 7700 Manual

1.

OVERVIEW

The 7705EO-HD Electrical to fiber converter provides an economical method of connecting in-plant
coaxial distribution and longer distance optical distribution for SMPTE 292M (1.5 Gb/s) HDTV serial digital
signals. The companion 7705OE-HD Fiber to Electrical converter facilitates conversion back to coaxial
distribution at the destination. The 7705EO-HD converter features one auto-equalized coaxial input with
two reclocked serial digital outputs and one reclocked fiber output. The 7705EO-HD has been designed to
be used primarily as a reclocking 1.5Gb/s distribution amplifier and converter, however, it can also be
used as a non-reclocking SMPTE 310M (19.4 Mb/s), DVB-ASI or SMPTE 259M(143 to 540 Mb/s)
distribution product.
The 7705EO-HD is available in different versions to meet a variety of applications. (See specifications for
complete information)
7705EO13-HD
7705EO13-HD-L 1310 nm DFB
7705EO15-HD
Features:
•
Reclocking mode for SMPTE 292M (1.5 Gb/s) signals
•
Non-reclock mode for SMPTE 310M (19.4 Mb/s), SMPTE 259M (143 to 540 Mb/s) or DVB-ASI, or
most other bit rates less than 1.5 Gb/s
•
Fully hot-swappable from front of frame with no fiber or BNC disconnect required
•
Independent isolated output drivers to ensure no cross channel loading effects and maintain polarity
from input to output for DVB-ASI applications
•
Automatic cable equalization to 130 m
•
Operation with multi-mode or single-mode fiber
•
SC/PC, ST/PC or FC/PC connector options
•
Tally output on Frame Status bus upon loss of input signal
Serial Input
1.5 Gb/s
(SMPTE 292M)
7705EO-HD SMPTE292M Re-Clocking Electrical to Fiber Converter
1310 nm MQW
1550 nm DFB
Equalizer
Signal EQ.
Present
Warning
*Note: Non-reclock Mode will operate 19.4 Mb/s to 1.5 Gb/s.

Figure 1: 7705EO-HD Block Diagram

Suitable for distances up to 6 Km @ 1.5 Gb/s
Suitable for distances up to 40 Km @ 1.5 Gb/s
Suitable for distances up to 50 Km @ 1.5 Gb/s
Re-
clock
Non-
reclock
Revision 1.7
7700 MultiFrame Manual
Cable Drivers
Optical Driver
2 Serial Outputs
1.5 Gb/s
(SMPTE 292M)
Optical Output
1.5 Gb/s
(SMPTE 292M)
7705EO-HD-1