evertz 400FR, Manual

Frame Manual 

400FR Compact High Density Balanced Audio Distribution Frame 

 Revision 

0.2 

Page - 7 

4. 

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 criterion 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). 
 

4.1. 

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 4-1

: Frame Status Tally Terminal Block Pin Assignments 

 
The relay contacts can sink up to 2A and operate up to 125 VDC.