Fuse Alarm; System Alarm Output Pins; Craft Port; Rs-232 Craft Port Pinouts - ADC HiGain H2TU-C-231 Manual

LTPH-TP-1034-01, Issue 1

Fuse Alarm

Pin 32 on the card-edge connector is a fuse alarm that is driven to -48 Vdc through a diode whenever the onboard
fuse opens.

System Alarm Output Pins

Pins 20 and 21 on the card-edge connector (see
signals
C P
RAFT ORT
Figure 30 shows the pinout for the craft port connector and its connection to a DB-9 or DB-25 connector on a
maintenance terminal.
H2TU-C-231
DB-9 Connector
(DCE)
H2TU-C-231 List 4E
Figure 29 on page
2 TD (Transmit Data)
RD (Receive Data)
3
5 GND
Figure 30. RS-232 Craft Port Pinouts
September 28, 2001
Appendix A - Specifications
58) are the H2TU-C-231 System Alarm output
Terminal
DB-9 Connector
(DTE)
2
3
5
Terminal
DB-25 Connector
(DTE)
3
2
7
59