Com0032-Com0034 Jumper Locations And Connections - ABB RED615 Technical Manual

Section 13
IED physical connections
13.3.8.4
866
Termination is enabled at each end of the bus
It is recommended to ground the signal directly to earth from one
node and through capacitor from other nodes.
The optional communication modules include support for EIA-485 serial
communication (X5 connector). Depending on the configuration the
communication modules can host either two 2-wire ports or one 4-wire port.
The two 2-wire ports are called as COM1 and COM2. Alternatively, if there is only
one 4-wire port configured, the port is called COM2. The fibre-optic ST connection
uses the COM1 port.
Table 687: EIA-485 connections for COM0008 and COM0010
Pin 2-wire mode
9 COM1
8
7 COM2
6
5 AGND (isolated ground)
4 IRIG-B +
3 IRIG-B -
2 GNDC (case via capasitor)
1 GND (case)

COM0032-COM0034 jumper locations and connections

The optional communication modules include support for optical ST serial
communication (X9 connector). The fibre-optic ST connection uses the COM1 port.
4-wire mode
A/+ COM2
B/-
A/+
B/-
1YHT530004D05 D
Rx/+
Rx/-
Tx/+
Tx/-
615 series
Technical Manual