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In addition, the MVME1600-001 base board provides +5Vdc to the
SCSI bus
panel SCSI connector. The
monitors the SCSI bus
operating voltages; when the MVME1600-001 is connected to an
SCSI bus, either directly or via the MVME760 module, SCSI
terminator power helps illuminate the
Note
The MVME1600-001 base board supplies a
the 14-pin combined LED-mezzanine/remote-reset connector, J1.
When J1 is used as a remote reset connector with the LED
mezzanine removed, the
external speaker. For the pin assignments of J1, refer to Table 1-2.
MVME1600-011 Base Board
The MVME1600-011 base board provides +5Vdc power to the
remote LED/switch connector (J4) through a 1A fuse (F1) located
between P1 and P2. (J4 provides a separate connection point for a
remote control and indicator panel, making it unnecessary to share
the LED mezzanine connector for that purpose.) If none of the
LEDs light and the
fuse F1.
The MVME1600-011 base board provides +12Vdc power to the
Ethernet transceiver interface through a 1A fuse (F2) located
between P1 and P2. The
available. With the MVME712M transition module connected, the
yellow DS1 LED on the MVME712M also signals the availability of
LAN power, indicating in turn that the fuse is good. If the Ethernet
transceiver fails to operate, check fuse F2.
signal through fuse F1, located near the front
TERMPWR
FUS
TERMPWR
Because any device on the SCSI bus can provide
, and because the
TERMPWR
of several voltages, the LED does not directly indicate
the condition of any single fuse. If the LED flickers or
goes out, check all the fuses (polyswitches).
SPEAKER_OUT
and
ABORT
FUS
Hardware Preparation and Installation
LED (DS5) on the front panel
signal along with the other
LED.
FUS
LED monitors the status
FUS
SPEAKER_OUT
signal can be cabled to an
switches do not operate, check
RESET
LED lights to indicate that +12Vdc is
1
signal to
1-47
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