7700 MultiFrame Manual
7707VT-4-HS Quad SD/Dual HD-SDI Fiber Transmitter
Page -
4
Revision
1.4
The following signal combinations may be installed on the input connectors:
Connector
Input
Combination #1
Input
Combination #2
Input
Combination #3
Input
Combination #4
1
HD-SDI HD-SDI SDI/SDTi
SDI/SDTi
2
HD-SDI SDI/SDTi
HD-SDI SDI/SDTi
3
N/A
SDI/SDTi SDI/SDTi SDI/SDTi
4
N/A
SDI/SDTi SDI/SDTi SDI/SDTi
Table 2-1: Input Signal Combinations
HD/SDI OUTPUT:
There is one BNC output which acts as a loopback for the input signals. The signal
present at the output is user selectable among the four input signals via local or
Vista
LINK
®
controls. Reclocking is provided at this output.
OPTICAL OUTPUT:
Output SC/PC (Shown), ST/PC or FC/PC female connector. The optical output
signal at this connector contains the TDM multiplexed input HD-SDI and/or SDI/SDTi video
signals. Any ancillary data (e.g. embedded audio, closed captioning, etc) present in the input
video streams prior to multiplexing are transparently passed through to this output.
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 a splitter/combiner) the output is
compatible only with single-mode fiber optic cable.
"
Do not hook up 7707VT-4-HS DWDM cards and any 7707VR-4-HS series cards
directly with a short fiber optic cable. The 7707VT-4-HS DWDM card produces
+7dBm of power, which will damage the receiver if connected directly.
"
Do not hook up the 7707VT-4-HS cards that output more than -7dBm of power
(see 7707VT-4-HS specifications for output power of various laser types) and
7707VR-4-HS-H high sensitivity receiver cards directly with a short fiber optic
cable. The 7707VT-4-HS cards that produce more than -7dBm of power will
damage the receiver if connected directly.