Motorola 900 series - Front Panel Indicators; Connectors

CPU Module
Front Panel Indicators
The six LEDs on the MVME197SP /DP front panel are: FAIL, SCON, RUN,
LAN, VME, and SCSI.
The yellow FAIL LED (DSl) is lit when the BRDFAIL signal line is active.
The green
SCON LED (DS2) is lit when the VMEchip2 is the VMEbus system
controller.
The green
RUN LED (DS3) is lit when the MC88110 bus MC* pin is low.
The
green LAN LED (DS4) lights when the LAN chip is the local peripheral
bus master.
The
green VME LED (DSS) lights when the board is using the VMEbus or
when the board is accessed by the VMEbus.
The green
SCSI LED (DS6) lights when the SCSI chip is the local peripheral bus
master.
Connectors
2-22
The Pl connector is a 96-pin connector which provides the interface to the
VMEbus signals. The
P2 connector is a 96-pin connector which provides the
interface to the
extended VMEbus signals and other I/0 signals.
The
Jl connector is a 249-pin connector which provides the interface to the
MC88110 address, data, and control signals to and from the mezzanine
memory expansion.
The
J4 connector pins are not used; all ten pin sockets are soldered over.
Reference Guide
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