GE Energy

3.6IRIG-B Input Adapter

The IRIG-B Input Adapter (GE Part No. 520-0211) plugs into a dedicated IRIG-B slot (slot 9) on the D400. The IRIG-B Input card accepts an IRIG-B signal in one of three input formats through a corresponding connector type:

Modulated IRIG-B through a BNC connector J2

Demodulated IRIG-B (TTL) through a terminal block TB1

Fiber Optic through a Receive (RX) 820-850 nm ST connector U12

The IRIG-B signal (TTL) can be subsequently distributed to attached IEDs through one of the following output methods:

IRIG-B Distribution Adapter (GE Part No. 520-0212). See section “3.7 IRIG-B Distribution Adapter”

RS-232 Adapter (GE Part No. 520-0207). See section “3.3 RS-232 Adapter”

On-board fiber optic output (TX) on 820-850 nm ST connector U13

See section “4.6 IRIG-B Connections” for wiring instructions.

Configuration Options

The input signal formats and output options are selectable via three switches on the IRIG- B Input card:

IRIG-B state option is configured by switch SW1

Input signal format is configured by switch SW2

Fiber optic TX option is configured by switch SW3

Follow instructions for setting the switches to select the appropriate IRIG-B signal formats and functions.

Factory Default

The factory default setting is the Standard state on each channel.

Switch SW1 Configuration

Switch SW1 controls the state option for the IRIG-B Input card. It contains two switch positions that can be set to ON or OFF to select the appropriate IRIG-B state option.

IRIG-B Input Card Switch SW1 Settings

IRIG-B State Option

SW1 Switch Positions

 

 

1

2

 

 

 

 

Standard (default)

ON

OFF

 

 

 

Inverted

OFF

ON

 

 

 

36994-0089–1.00–2, General

Page 36
Image 36
GE 994-0089 user manual IRIG-B Input Adapter