Issue 1
December 1997
xvii
Contents
Detailed Description of Operation
Transmission Circuitry
Control Circuitry
Timing Circuitry
Protection Circuitry
Fault Detection Circuitry
Power Circuitry
BBG12 3STS1E Hardware Settings
BBG12 3STS1E Quick Reference Summary
Transmit Functions
Receive Functions
Control Functions
Maintenance Signal Functions
BCP3 TSI FLEX Circuit Pack Description
Purpose of Circuit
BCP3 Faceplate Indicators
General Description of Operation
Detailed Description of Operation
Transmission Circuitry
Clock and Frame SYNC Distribution
Maintenance Features and Modes
Power Circuitry
BCP3 Quick Reference Summary
Interface Functions
Control Functions
Maintenance Functions
21D/21D-U OLIU Circuit Pack Description
Purpose of Circuit
21D and 21D-U OLIU Faceplate Indicators
General Description of Operation
Detailed Description of Operation
Transmission Circuitry
Control Circuitry
Timing Circuitry