D-Link DE-805TP - 10Mbps Ethernet Mini Hub User Manual download pdf (Page 34)

Modbus for Field Technicians

Page 34

Tip Advice #5 – Cable Type

Cable selection does make a difference.

All cables offer impedance (resistance). Some cables are designed so that the

impedance is relatively independent of distance. You want one of these

cables. A clue to knowing if you selected one is to look at the cable’s Nominal

Impedance. If they quote a number such a 100Ohms you have a good cable. If

they quote an impedance per meter/foot you have chosen the wrong kind.

1 2 ... 29 30 31 32 33 34 35 36 37 38 39 ... 76 77

No comments

D-Link DE-805TP - 10Mbps Ethernet Mini Hub User Manual Page 34