SOLUTIONS FOR LONG HAUL 1394
July 2011
Koen Van den brande
kvandenb@eqcologic.com
Office: +32 (2629) 1031
FireWire goes the distance
 
 
Originally, 1394 (1394a-1995) was limited to max 4.5m STP
cable
Later standards (1394b-2002) enable longer lengths using
different media:
 
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 
 
Multimode glass fiber, S400-S1600, 100m
HPCF and POF fiber, S100-S200, 50m
UTP cable, S100, 100m
Thick STP cables (lower loss), S800, 10m
Recently, further enhancements have been standardized
(1394-2008 and later):
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Single mode glass fiber, S800 – S3200, 2000m
UTP, S200-S400, 75m
Coax cable 50Ω and 75Ω, S800, ~60m
1394 over copper media
 
 
Copper has the advantage of being robust, cost efficient, widely
available, and allows power to be transmitted together with
data signals
2 solutions for 1394 over long haul copper (>10m)
  1394 over UTP, specified in IEEE 1394-2008
•  S200 over 100m cat6
•  S400 over 75m cat6
 
1394 over Coax: specified in TS2007005
•  Many types of coax cables => Attenuation budget (12dB)
•  S800 over 20m (thin coax) to 100m (thick low loss coax)
 
Both standards use equalization to get long distances
3
Equalizer principles
Transmission
Line
Transmission
Line
Driver
Digital
Receiver
-20
40
×
-30
30
-40
20
-50
Equalizer
Gain
60
50
+10
?
10
-60
1
10
100
Frequency
1000
Reconstructed
Signal
+30
+20
0
1
Amplitude (dB)
Cable
A6enua8on
0
-10
Gain (dB)
Amplitude (dB)
Equalizer
10
100
Frequency
1000
0
-10
-20
-30
1
10
100
Frequency
1000
Equalization technology overcomes degradation of digital signals due to
attenuation over an electrical conductor. The compensation applies to conductor
length limitations, data rate restrictions or both
EqcoLogic equalization circuits are fully adaptive, dynamically changing
performance parameters for different cable types and lengths, as well as
temperature conditions
In practice: no new 1394 PHY needed
Coax connects to PHY via
EQCO800SC: a transceiver chip
implementing coax PMD layer
standard 1394
connector directly
connects to PHY
Standard 1394
bilingual PHY
(TI or LSI)
UTP connects to
PHY via EQCO400T:
a transceiver chip
implementing UTP
PMD layer
5
EqcoLogic Available 1394b Products
 
EQCO400T - Equalizer for 1394b over UTP
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EQCO850SC - Transceiver for 1394b over 50Ω coaxial cable
 
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Operates S100 to S400, fully adaptive
Allows use of UTP cable (Cat5e/Cat6), giving ranges up to 100m
Allows transmission of power over same cable
Operates S100 to S800, fully adaptive
Compensates for 12 dB cable loss @ 500 MHz
Allows transmission of power over same cable
EQCO875SC - Transceiver for 1394b over 75Ω coaxial cable
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Operates S100 to S800, fully adaptive
Compensates for 12 dB cable loss @ 500 MHz
Allows transmission of power over same cable
Typical 1394 network
Ways to implement long haul link
 
Customize 1394 device
 
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Use off-the-shelf media convertor
 
 
replace standard 1394 connector by a fiber,
UTP or coax connector + appropriate
transceiver chip
1394 repeater with one or more standard 1394
ports and fiber, UTP, coax ports. Available
from many manufacterers
Use active cable or dongle
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direct media conversion without a 1394 PHY
works for 1394b only
Active cable = fixed length
Dongle = customizable length
1394 network with repeaters
1394 network with dongles
and/or active cables
End Product Announcements
Components Express Inc “CEI”
Kramer UTP
Repeater/Hub
Comoss/EqcoLogic
1394b 50Ω and 75Ω dongles
Newnex UTP and coax
Repeater/Hub
LAN Accessories
UTP Repeater/Hub
IOI Coax repeater
and host adapter
20, 40 and 60 meter fixed Smart Cables
Unibrain, CEI, Comoss, Newnex
Small (4-5mm dia.) cables 75Ω cable
11
1394b Dongle Technical Specification
IEEE 1394B interface
Connector
9‐Pin
1394b
Coax Interface/cable
EQCO‐FW5001—50Ω
ohm
EQCO‐FW7501—75Ω
ohm
50Ω
rated
SMA
75Ω
rated
BNC
Power over cable
Max
Voltage
Max
Current
Max
Transmi6ed
Power
32V
(1394b
bus
voltage)
1.0A
(limited
by
coax
dongle
linear
power
supply)
32W(before
cable
losses)
Power supply – to
remote device
Voltage
Available
VIN
(bus
voltage)
‐1V
‐Coax
DC
drop
(varies
with
cable
type/length)
Environmental
Opera8ng
Temperature
Rela8ve
Humidity
Storage
Temperature
0
–
50C
Up
to
85%
‐
non‐condensing
‐20
–
+70C
1394b Dongle Performance Specification
Performance by Product and Cable Type
(All cable information at
S800/1.0Gbit/s data-rate)
EQCO-FW7501
(75Ω)
EQCO-FW5001 (50Ω)
RG174
50Ω/2.8mm
dia
15
meters/49
feet
RTK
50Ω/2.8mm
dia
25
meters/81
feet
RG58
50Ω/5mm
dia
30
meters/67.5
feet
RG179
75Ω
20
meters/65
feet
RG59
75Ω
40
meters/130
feet
RG6
75Ω/5mm
60
meters/195
feet
Key Markets – Machine Vision
 
Industrial, Medical & Military Imaging Applications
 
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Requirements
 
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High resolution cameras for robotics, inspection, medical
diagnostics, unmanned vehicles etc
Power over cable
Highest bandwidth
Bi-directional communication
Flexible cabling
Rotating joints
Noisy environments
< 50m
Solutions
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Off the shelf 1394b S800 camera
Coax connection using smart cables (fixed length) and/or
dongles (custom length)
Key Market – Factory Automation
 
Factory Automation (FA) applications include:
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Requirements
 
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 
system control
motion control; integration of sensor signals for servo
control
Robotics for semiconductor manufacture
“Industrial grade” FireWire (1394b) due to its low
latency and excellent timing
< 30m
S400 or lower
Solutions
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 
1394b S400 over UTP or STP
Usually integrated 1394 UTP ports, sometimes media
convertors
Surveillance
 
Surveillance
 
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Requirements
 
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 
Usually IP/Ethernet camera
There are opportunities to use 1394 cameras for
surveillance
Long lengths, 100m
S400 or lower (compression)
Power over cable
Reuse existing 75Ω coax cables used by analog
CCTV cameras
Solutions
 
 
Coax and UTP (new installations)
Integrated ports, sometimes repeaters
Audio/Video Systems
 
Audio/Video systems
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Requirement
 
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 
Recording studios
Home networks
1394 excellent network for isochronous applications
Use standard network cabling: UTP or reuse coax already installed
in a house for analog TV
S400 or lower
Solutions
 
Coax and UTP
EqcoLogic 1394b Product Roadmap
Equalizer and Transceivers
2007/9
2009/10
2012
Equalizer for 1394b over Cat 5
- 1394b up to 500Mbps
-  CAT5 cable
- up to 100m distance
EQCO850SC
- 1394b up to 1Gbit/s
- 50Ω coaxial cable
- 30 meter distance
EQCO875SC
1394b up to 1Gbit/s
- 75Ω coaxial cable
- 60 meter distance
EQCO3200 1394b
- 1394b up to 5Gbit/s
- STP cable
- ~15m (under investigation)
Thank You !