Instruction Manual

KRAMER: SIMPLE CREATIVE TECHNOLOGY

Overview

3 Overview

The high performance 648 FireWire 800/1394b Optical Repeater can connect

between a host computer and remotely located peripheral devices via fiber

optics. IEEE 1394b protocol signals can be extended to up to 500m (1640

feet), with a data rate of up to 800Mbps in full duplex mode

In particular, the 648:

 Fully complies to the 1394b-2002 standard and is backward-compatible to

the 1394a-2000 and 1995 standards at 100/200/400Mbps

 Includes two electrical bilingual ports and an optical duplex LC fiber optic

connector (transmitter and receiver)

 Includes full P1394a support, that is, Connection Debounce, Arbitrated

Short Reset, Multispeed Concatenation, Arbitration Acceleration, Fly-By

Concatenation, Port Disable/Suspend/Resume

 Meets Class 1 eye safety, certified by FDA/CDRH and IEC 60825-1

 Works with both PC and Mac computers

 Provides power through the connector

3.1 About FireWire

The Kramer DigiTOOLS 648 is based on FireWire which:

 Is a serial bus standard

that enables quick universal interfacing between

video and computer hardware items

 Is simple to use and operates independently of the host system, letting you

connect more items than you otherwise could (as a computer only has

limited ports available), and for extended distances. Several can be

cascaded to create up to a 63 port FireWire Repeater / HUB

 Supports Plug and Play

, hot swapping

and isochronous

and

asynchronous applications

1 While the maximum cable length for transferring a 1394b protocol signal is currently 4.5 meters, the optical cables support

extension to up to 500 meters

2 Originally developed by Apple™ and published as IEEE 1394 by the Institute of Electrical and Electronics Engineers

3 Hardware items include digital cameras, computers, printers, VCRs, CD-ROMs, hard disks, scanners and graphic cards

4 Configures automatically. Whenever a device is added or removed the 1394 bus re-enumerates

5 You can connect and disconnect inputs and outputs dynamically, without having to restart the computer or cycle power

6 Video / audio applications require constant transfer rates, which the serial bus provides by supporting isochronous transfers