User's Manual

Hermos Technical Reports

Release 2.1 Page 13 of 22

In the standard version, the devices are equipped with a FFT-10A transceiver.

For the transceiver FTT-10 following data are applied:

Cable type Max. length of node to node

Belden 85102 500m

Belden 8471 400m

Level IV, 22AWG 400m

JY (St) Y 2x2x0,8 320m

The bus-topology consists of a main cable on which the individual nodes will be

connected with short stub lines. Terminators have to be connected on both ends of

the cable.

For the transceivers FTT-10 following bus lengthes are applied:

Cable type Max. length of main cable

Belden 85102 2700m

Belden 8471 2700m

Level IV, 22AWG 1400m

JY (St) Y 2x2x0,8 900m

The maximal length of a stub line is 3m.

T T

Reader or gateway

Terminator (bus termination)

Connection cable (bus + power supply)