OT Systems FT420DB - Manual (Page 5)

FT420DB Series Installation & Operation Manual
www.ot-systems.com 5
(2) Product Overview
2.1 Introduction
The FT420DB Series products comprise of either single-mode or multi-mode fiber optic
transmitters and receivers for the optical transmission of FOUR forward (Tx → Rx) video and
TWO bi-
directional (Tx ↔ Rx) data signal on one fiber. The products work at wavelengths of
1310nm and 1550nm with either a 9/125um or 62.5/125um fiber for single-mode or multi-mode
transmission respectively.
A non-compressed 10-bit digital video transmission scheme is implemented which supports
multi-systems video in NTSC, PAL and SECAM formats. Transparent data transmission is also
accomplished in RS232, RS422 and RS485 formats regardless of the types of communication
protocol implemented within the system. Time Division Multiplex (TDM) technique is employed for
digital transmission of forward video and data; whereas optical Wavelength Division Multiplex
(WDM) technique is employed for simultaneous reverse data transmission so as bi-directional
data transmission is accomplished.
For single-mode transmission, we also offer specifically designed products for long-haul
transmissions up to 60km. These models include the letter “L” in the suffix, e.g. FT420DB-SSTL
for Tx, FT420DB-SSRL for Rx, etc.
The FT420DB Series units are available as standalone units, which can be mounted
horizontally or vertically wall-mounted on any fixture. The standalone unit comes with an external
power supply FT-PA/12V, which can be powered by local 110/220V power.
The FT420DB Series units are also available as plug-in card modules installed in a
19”
rack-mount chassis. Each plug-in card occupies two slot in the rack-mount chassis. The rack
mount chassis has to be ordered separately, and comes with its own power supply for powering
the installed card modules.