7700 Multi-Frame Manual
7707EO-3G 3G/HD/SDI Re-Clocking Electrical to Optical Converter
Page-4
Revision
1.1
GPO:
The 7707EO-3G provides the user with 1 General Purpose Output. It is dry-
contact relay closure. The GPO polarity is user selectable normally open or
normally closed, and always open on power loss. Figure 2-2 shows the
output circuitry. Refer to 3.4 for electrical specifications.
GPO
GPO
GPO
GROUND
Figure 2-2: General Purpose Output
2.2. OPTICAL
CONNECTIONS
FIBER OUTPUT:
There is one SC/PC (shown), ST/PC or FC/PC female connector with the video
output converted to an optical signal as specified in section 3.3.
This optical output is available in 1310nm, 1550nm, up to sixteen CWDM
wavelengths (ITU-T
G.694.2 compliant) and up to 40 DWDM wavelengths
(ITU-T G.694.1 compliant). The output wavelength is marked on the rear panel of
each module. When connected directly to a companion module, the output is
compatible with multi-mode fiber optic cable. If not connected directly (i.e.
connected through CWDM, DWDM, WDM, or splitter/combiner) the output is
compatible only with single-mode fiber optic cable.
"
Do not hook up the 7707EO-3G DWDM cards directly with a short fiber optic
cable. The 7707EO-3G DWDM cards p7dBm of power, which will
damage the receiver if connected directly.
"
Do not hook up the 7707EO-3G cards that output more than -7dBm of power
(see 7707EO-3G specifications for output power of various laser types) and
7707OE-3G-H high sensitivity receiver cards directly with a short fiber optic
cable. The 7707EO-3G cards that produce more than -7dBm of power will
damage the receiver if connected directly.
