Overview - evertz MultiFrame 7700 Manual

1.

OVERVIEW

The 7807LT-2 is a dual fiber optic transmitter for RF signals in the extended L-Band frequency range and
below, for frequencies such as over-the-air DTV. It accepts two RF inputs from coaxial cable and provides
two outputs for optical transmission. An RF monitor output is provided for each input, which offers a
convenient means of obtaining peak satellite signal strength, or additional signal distribution. With two
optical transmitters per single-slot card, the 7807LT-2 provides an economical, high density solution.
Individual monitoring and control is provided for each signal path. Gain may be adjusted manually or
managed automatically via AGC. With SmartMON™, incoming RF signal strength, LNB current, and other
data are relayed over the fiber output for monitoring through SNMP/VistaLINK
(requires SmartMON™ capable companion fiber receiver). LNB power with selectable 13/18V DC and 22
kHz tone is also provided on each RF input.
Features:
• Extended frequency response for extended L-Band, off-air DTV and other signals
• Protocol independent design - transports all modulation formats
• LNB power with selectable 13/18V DC, per input
• LNB current limit & short circuit protection
• LNB current monitoring for advance warning of LNB failure
• 22kHz tone on/off for LNB local oscillator control, per input
• RF monitoring output ports for signal peaking and signal distribution
• Manual gain and AGC modes for tuning optimal CNR performance
• Multiple versions of the 7807LT-2 are available to address single-mode/multi-mode fiber, single/dual
fiber and CWDM/DWDM applications.
• The 7807LT13/15-2-W is a dual channel card that features and on-board fiber coupler, requiring only
a single fiber for the link (companion receiver is the 7807LR-2-W)
• Dual fiber transmitters on a single-slot card provides the industry's highest density solution
• SmartMON™ capability provides remote status monitoring via SNMP without a separate data
connection
• VistaLINK® capability is available for monitoring and control when modules are used in a 3RU
7800FR frame and a 7700FC VistaLINK® frame controller is installed in slot 1 of the frame
• Form-C dry contact GPO alarm contacts for monitoring
• Fiber link provides electrical isolation between antenna and facility, mitigating ground loop and
lightning issues
• Compatible with all 2406LR, 7706LR, 7708LR and 7807LR-2 series receivers
7700/7800 MultiFrame Manual
7807LT-2 Dual Wideband RF Fiber Transmitter
Revision 1.2
at the fiber receiver
®
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