User's Manual

69
Document Number: 0100SM1401 Issue: 05-15
Select Switch
The 3 position switch (A / Auto / B) on the front panel
provides the following functionality:
Position A: Radio A is forced online
Position Auto: changeover hardware will select
the online radio
Position B: Radio B is forced online
Adjacent to the select switch are two LEDs: These LEDs
indicate the current online radio.
Indicated State ETH port
Ethernet port inactive, no
cable connected
Ethernet port active @
10Mbps
Ethernet port active @
100Mbps
User Ports
Digital switching in the hot standby controller directs
user data to and from the user ports on the front panel
directly to the user ports on the online radio.
Ethernet Port LED Indicators
Indicated State
Select
LEDs
Auto Mode
Local Force
Remote Force
Part F – Quick Reference Guide
Physical Interfaces
Front Panel
Rear Panel (Hot Standby Controller Option A)
User Ports Radio B
Radio A
Ethernet Ports
1 2 3
Serial port
COM 1 & 2
Ethernet
Port
Aux
Port
Serial port
COM 1 & 2
Ethernet
Port
Aux
Port
Serial port
COM 1 & 2
Radio Select
Switch
Dual 12V
DC Inputs
Tx Antenna
port (N-Type)
Rx Antenna
port (N-Type)
Digital inputs
1, 2 & 3
Digital outputs
1, 2 & 3
Radio A Tx Radio A Rx
Radio B Tx Radio B Rx
Hot Standby Controller Option B
The QHHSC Option B connections are identical to option A however, option B does not include any RF interfaces on the HSC.