Unibrain introduces a new
family of Long FireWire-800™ cables. Extend your topology
up to 40 meters (131 ft) via a single 75 Ohm coaxial type cable and
no need for multiple repeaters or bus extenders.
The cables are available in the following lengths. Longer cables will be available later this year and custom length
options are possible under an OEM/volume request basis.
20m (65 ft) Firewire-800, 9 pin to 9 pin standard 1394b ports (Part #: 1660)
40m (130 ft) Firewire-800, 9 pin to 9 pin standard 1394b ports (Part #: 1661)
Smart Connector
Each END is actually a 'Smart' device using EqcoLogic's
equalizer with the following unique characteristics:
Auto-adaptive: controls a multiple pole analog
filter that compensates for attenuation of the cable
Variable gain: EqcoLogic's equalizers are used in
pairs. Any differences in transmit amplitude are removed by the input
pre-driver. The receiver equalizer has variable gain to compensate for
attenuation through the transmission line
Multi-speed: it supports S800, S400, S200 and S100
speeds
Power requirements for the IEEE 1394 bus
The most important factor considered on any Firewire
topology is that sufficient power is provided to the devices guaranteeing
stability on the bus. In long distance solutions, there may be
significant power loss across the power as well as the data lines. Thus
it is strongly recommended that the firewire adapter on the PC side is fed
with additional power internally through its power connector.
With the
20m (65 ft) version of the Long cable you will be able to operate reliably up
to 3 industrial cameras simultaneously without any additional power
(provided the firewire adapter in the PC is powered internally though its
additional power input).
With the 40m (131 ft) version you will need to
provide additional power (12V) unless the device is self-powered (e.g. it is
an external firewire disk). If the device does not have input for
additional power, you can use a FireRepeater at the end of the long cable
for providing additional power to the bus through the repeater's power input
jack.
Specifications
Up to 800 Mbps full-duplex bidirectional high speed data transmission.
Multiple shielding and insulation for maximum speed without data loss.
Developed for Low Emissions and High Immunity (automotive applications).
Thin, flexible cable type. OD: 4 mm (vs 7-8 mm of regular Firewire-800 cables).
Firewire-800, standard 9 pin port screw lock compatible connector.
Connector mechanical drawing.
