Installing The Serial Communication Cable For Rs485 Spa/Iec - ABB RELION 670 Series Installation Manual

1MRK 514 026-UEN B
6.4.2
670 series 2.2 IEC
Installation manual
1
IEC03000110 V1 EN-US
Figure 47: Cable contact, Phoenix: MSTB2.5/6-ST-5.08 1757051
Where:
1 is cable
2 is screw
Pair separator
Drain wire
Jacket
IEC07000139 V1 EN-US
Figure 48: 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
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
2
en03000110.vsd
Pair Shield
Conductor
Overall shield
Separator
en07000139.vsd
Section 6
Connecting
SPA/IEC".
SEMOD176342-192 v3
77