The S800 Optical FireWire Repeaters (M4-200 and M4-201) offer 500m (1,640feet) extension over the limits of copper wire extension, 4.5m (15feet) without any distribution amplifiers or repeaters. The basic model, M4-200 consists of a pair of two repeaters, having one-optical and two-electrical ports. Additionally, between two, multiple installation of M4-201, having two-optical and one-electrical ports provides a long fiber-optic extension of additional 1394 devices. The M4-201, giving connection of a 1394 device is capable of two-way fiber connection in forward and backward directions, which eventually makes a daisy chain with each repeater of M4-200 at both ends.
Duplex multi-mode glass of fiber (MM GOF) cables with LC connectors makes fiber connection between repeaters.
The electrical bilingual port of 1394b-2002 standard supports S800 (800Mbps) data rate, fully complied with IEEE1394b-2002, but also backwardly S400, S200, and S100 by using DS (9 pin or 4 pin)-to- bilingual cables.
When applying to IEEE1394 devices or controllers having powers themselves, the M4-200 repeater requires plugging the external DC power adapter in shipping package, only when the power indicating LED is off.

Features:
Extends any IEEE1394 device up to 820 feet at 62.5/125um and 1640 feet
at 50/125um
Fully compliant with 1394a (DS Port) and 1394b draft standard (Beta
Port)
Offers 400 Mbps full duplex data rate
Plug and play. Installs in minutes. Hassle free installation.
(No software installation necessary)

Technical Information:
Support Operating Speed: S100 (122.44 Mbps) S200 (245.76 Mbps) S400
(393.216 Mbps)
Extension limit: 500 Meters (1640 Feet)
Optical Source: 850 nm VCSEL
Using Connection: 1394a DS port *2
Duplex LC Multi-mode Optical Cable
Using fiber: 50 or 62.5/125 Multi-mode fiber
Operating Temperature Range: 0 to 50 degrees Centigrade
Storage Temperature Range: -30 to 70 degrees Centigrade
Power supply: DC 12V, 600mA Adapter
Ideal installations:
Security Cameras
Camcorders
File servers and network storage
Security systems for banks