Appendix A - Specifications
152-388-115-03, Issue 03
58
April 21, 2000
H2TU-C-388 List 1E
H2TU-C-388 C
ARD
-E
DGE
C
ONNECTOR
shows the card-edge connector on the H2TU-C-388. Active pins are highlighted in black.
Figure 26.
H2TU-C-388 List 1E Card-Edge Connector
Network Management Control Bus
The H2TU-C provides a Network Management Control Bus on pin 104 of the card-edge connector. This allows
the various ADC Management System protocols to manage the H2TU-C through the HMU-319 HiGain
Management Unit. Whenever the H2TU-C is under management, the
MNGD
message displays periodically on the
front-panel display.
Fuse Alarm
Pin 117 on the card-edge connector is a Fuse Alarm that is driven to -48 Vdc whenever its onboard fuse opens.
Some H2TU-C-388 List 1E features are affected when it is under management. Consult the
management unit practice for further information.