ABB Relion 670 series - Installing the Serial Communication Cable for RS485 SPA;IEC

en03000110.vsd
1
2
IEC03000110 V1 EN
Figure 54: Cable contact, Phoenix: MSTB2.5/6-ST-5.08 1757051
Where:
1 is cable
2 is screw
Conductor
Pair Shield
Pair separator
Jacket
Separator
Overall shield
Drain wire
en07000139.vsd
IEC07000139 V1 EN
Figure 55: Cross section of communication cable
The EIA standard RS-485 specifies the RS485 network. An informative excerpt is
given in section
"Installing the serial communication cable for RS485 SPA/IEC".
5.7.2 Installing the serial communication cable for RS485 SPA/IEC
Informative excerpt from EIA Standard RS-485 - Electrical Characteristics of
Generators and Receivers for Balanced Digital Multipoint Systems
RS-485 Wire - Media dependent Physical layer
1MRK 502 029-UEN A Section 5
Installing the IED
81
Installation and commissioning manual