| 摘要 |
A monitoring system for a network having a plurality of segments including a plurality of identical monitoring instruments respectively connected to the segments. Each monitoring instrument includes an interconnection circuit card for connecting to its segment, a microcomputer circuit card connected to the interconnection circuit card, an interface circuit card connected to the microcomputer circuit card, a plurality of status lamps respectively connected to the interface circuit card, a plurality of switches for providing self testing, resetting, alarm, instrument selecting, segment selecting, connected to the interface circuit card, and a plurality of switches for providing transmit/receiving or transmitting only, a monitor mode, a verify mode, and an auto fault mode, connected to the interface circuit card. |
