5-12 Panel Handling Subsystem
SMEMA Interface Standards 5DX Series 3
Untested Panel
Output (UPO)
ODC 20 Front Panel Signals:
UPO Untested Panel
Out
SMEMA UPO -
Untested Panel
Output
The 5DX uses this
signal to indicate
that the panel being
sent has not been
tested.
Good Panel Output
(GPO)
ODC 32 Rear Panel Signals:
GPO Good Panel
Out
Rear SMEMA GPO The 5DX with the
middle rail installed
uses this signal to
indicate that the
panel being sent in
the rear lane has
been tested and is
good.
Untested Panel
Output (UPO)
ODC 31 Rear Panel Signals:
UPO Untested Panel
Out
Rear SMEMA UPO The 5DX with the
middle rail installed
uses this signal to
indicate that the
panel being sent in
the rear lane has not
been tested.
Transfer Request
Input (TRI)
IDC 35 Rear SMEMA TRI The 5DX with the
middle rail installed
forces this signal
low when it is ready
to send a panel to
the downstream
equipment for the
rear lane.
Table 5-1: SMEMA electrical interface signals
SMEMA Signal
Name
Digital
I/O Bit
Hardware Status
and Control
Description
Digital I/O
Assembly
Description
Function