User's Manual

20
©2013 Broadcast Electronics
Pin
Direction
Name
Description
21
Output
VSWR Fault
Low when the affected part of the system is shut
down due to reflected power above safe levels or
VSWR greater than 2.0:1
22
Output
Transmitter On
Low when system RF output power is on.
23
Output
Transmitter Off
Low when system RF output power is off.
24
Output
Mute Status
Low when the transmitter is muted via input pin 5.
25
Output
AFC Lock
Low when the internal exciter is locked onto the set
frequency. Can be setup to be active High.
26
Output
Power Supply Fault
Low when a power supply fault is detected in any RF
power supply.
27
Output
Reserved
Reserved
28
Output
PA Fault
Low when any fault is detected in any PA module.
29
Output
Reserved
Reserved
30
Output
Reserved
Reserved
31
Input
Reserved
Reserved
32
Output
+5V
Low power logic voltage supply for remote interface
logic on this interface. Jumper J26 allows this to be
wired for fused or isolated power supply. Isolated
current limit is 7.5mA. Fused current limit is 0.5A.
33
Output
Forward Power
DC voltage for system forward output power. Varies
linearly from 0V = 0W to 5V = 70 Watts
34
Output
PA Voltage
DC voltage representing the variable RF power
supply. Linear from 0V = 0V to 5V = 30 V.
35
Output
Reserved
Reserved
36
Output
Reserved
Reserved
37
N/A
Ground
Alternative isolated ground pin internally connected
to pin 19, see above for details.
3.1.2
BE INTERFACE
Broadcast Electronics machine interface. This D-Sub 37 female connector provides
conduits for many exciting new product options including a standby exciter, digital radio
generators, and much more.
Table 3 – BEI Pins
Pin
Direction
Name
Description
2
N/A
Ground
Chassis Ground
4
Input
Active/Standby
Tie to ground to activate this CPE, open for standby
Other
Reserved
Reserved
3.1.3
COM IN
This input is not used in STXe applications.
3.1.4
COM OUT
This input is not used in STXe applications.