Frame Manual
500FR 3 Rack Unit Frame
Revision
1.4
500FR-5
2.
FRAME STATUS FAULT CONDITIONS
The Frame is fitted with a global Frame Status monitoring buss that is connected to each of the power
supplies and to each of the modules. When a fault condition occurs on one of the power supplies, or one
of the modules, a Frame Status Fault condition is active on the frame status buss. When this occurs the
red FRAME STATUS LED on the power supply will come on and the relay on the Frame Status Tally
terminal block will activate.
Power supplies, will assert a frame status fault when their PSU STATUS LED is off.
Each module has a large red LOCAL FAULT LED and a large green MODULE OK LED at the top of the
card edge. This green LED indicates good module health while the red LED indicates that there is a fault
condition on the module. Each module has its own criteria that determines when the red fault LED comes
on. When the red LOCAL FAULT LED is On the module can also assert a fault condition on the Frame
Status buss. On each module there is a jumper that disables sending local card fault information to the
Frame Status Buss. For more information about fault conditions on individual modules, and for the
location of the Frame Status Jumper on the module consult the individual chapter for the module. For
example, if a module requires video or audio for its functionality and the video or audio is not present, the
red LOCAL FAULT LED on the module will be On and the fault will be reported on the frame status buss if
the FRAME STATUS jumper on the module is set to the On position (default).
2.1.
FRAME STATUS TALLY TERMINAL BLOCK
There is a green
FRAME STATUS
terminal block at the rear of the frame that has a normally open and
normally closed relay contact that can be used to indicate frame status fault conditions to external
equipment. There are 4 connections.
Label Pin
#
Function
G
1
Chassis Ground (connect to cable shield)
R
2
Common (connect to Ground or your reference)
O
3
Open with respect to common when Frame Status fault exists
C
4
Closed with respect to common when Frame Status fault exists
Table 1: Frame Status Tally Terminal Block Pin Assignments
The relay contacts can sink up to 2A and operate up to 125 VDC.
3.
INSTALLING AND REMOVING THE MODULES
3.1.
OPENING AND CLOSING THE FRONT PANEL
In order to insert or remove modules you will have to open the front panel. Turn the two captive screws
located on the front panel counter clockwise several turns until they release completely from the front
extrusions. Carefully lower the front panel door so that the front edge of the door is lower than the rear of
the door.
