xviii
Issue 1
December 1997
Contents
Protection Circuitry
Fault Detection Circuitry
Performance Monitoring
Power Circuitry
21D/21D-U OLIU Quick Reference Summary
Transmit Functions
Receive Functions
Control Functions
Maintenance Signal Functions
21G/21G-U/21G2-U OLIU Circuit Pack
Description
Purpose of Circuit
21G/21G-U/21G2-U OLIU Faceplate Indicators
General Description of Operation
Detailed Description of Operation
Transmission Circuitry
Control Circuitry
Timing Circuitry
Protection Circuitry
Fault Detection Circuitry
Performance Monitoring
Power Circuitry
21G/21G-U OLIU Hardware Settings
21G/21G-U/21G2-U OLIU Quick Reference
Summary
Transmit Functions
Receive Functions
Control Functions
Maintenance Signal Functions
23G/23G-U OLIU Circuit Pack Description
Purpose of Circuit
23G/23G-U OLIU Faceplate Indicators
General Description of Operation
Detailed Description of Operation