Rs232 Connection; Download/Monitor Port; Gps Fibre Connection; Fibre Communication Connections - GE MiCOM P40 Technical Manual

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RS232 CONNECTION

Short term connections to the EIA(RS)232 port, located behind the bottom access cover, can be made using a

screened multi-core communication cable up to 15 m long, or a total capacitance of 2500 pF. The cable should be

terminated at the product end with a standard 9-pin D-type male connector.

Short term connections to the download/monitor port, located behind the bottom access cover, can be made

using a screened 25-core communication cable up to 4 m long. The cable should be terminated at the product end

with a 25-pin D-type male connector.

Some products use a GPS 1 PPS timing signal. If applicable, this is connected to a fibre-optic port on the

coprocessor board in slot B. The fibre-optic port uses an ST type connector, compatible with fibre multimode

50/125 µm or 62.5/125 µm – 850 nm.

The fibre optic port consists of one or two channels using ST type connectors (one for Tx and one for Rx). The type

of fibre used depends on the option selected.

850 nm and 1300 nm multimode systems use 50/125 µm or 62.5/125 µm multimode fibres. 1300 nm and 1550 nm

single mode systems use 9/125 µm single mode fibres.

P446SV-TM-EN-1

Chapter 23 - Installation