Connection
|
Typical Max Rate
|
Reach (distance)
|
Max Devices per segment
|
ACCESS.bus / IIC
|
45000 bps - 90000bps
|
10m
|
128
|
RS-232 serial port (16550 UART)
|
115200 bps
|
15m
|
2
|
standard parallel port
|
115200 bps
|
3m
|
2
|
| ARCNET over RS-485 |
156125 bps - 2.5Mbps |
1000m-300m |
255
|
CAN - differential balanced RS-485
|
250000 bps - 1Mbps
|
|
|
USB 1.0 - low speed
|
1.5 Mbps
|
3m
|
|
| USB 1.0 - high speed |
12 Mbps
|
5m
|
|
ECP/EPP parallel port
|
3 MBytes/s
|
3m
|
|
IDE
|
3.3 - 16.7 MBytes/s
|
1m
|
|
SCSI-1
|
5 MBytes/s
|
|
|
SCSI-2 (Fast SCSI, Fast Narrow SCSI)
|
10 MBytes/s
|
|
|
Fast Wide SCSI (Wide SCSI)
|
20 MBytes/s
|
|
|
Ultra SCSI (SCSI-3, Fast 20, Ultra Narrow)
|
20 MBytes/s
|
|
|
Ultra IDE
|
33 MBytes/s
|
|
|
Wide Ultra SCSI (Fast Wide 20)
|
40 MBytes/s
|
|
|
Ultra2 SCSI
|
40 MBytes/s
|
|
|
IEEE-1394 (FireWire)
|
12.5 - 50 MBytes/s
|
4.5m
|
63
|
Wide Ultra2 SCSI
|
80 MBytes/s
|
|
|
Ultra3 SCSI
|
80 MBytes/s
|
|
|
Wide Ultra3 SCSI
|
160 MBytes/s
|
|
|
FC-AL Fiber Channel
|
100 - 400 MBytes/s
|
|
|
Ethernet UTP-5
|
10 - 100 Mbps
|
100m
|
|
Ethernet optical
|
1 Gbps
|
10km
|
|
Ethernet optical
|
10 Gbps
|
40km
|
|
IEEE 1394 over Plastic optical fiber
|
100 - 1600 Mbps
|
100m - 50m
|
|
IEEE 1394 over 50um glass optical fiber
|
400 - 3200 Mbps
|
100m
|
|
| IEEE 1394 over shielded twisted pair |
400 - 3200 Mbps |
4.5m
|
|
| IEEE 1394 over shielded twisted pair (data strobe)
|
100 - 400 Mbps
|
4.5m
|
|