ServerNet Nomadic Disk User's Guide
Switch Modules
ServerNet Nomadic Disk User’s Guide—425485-001
4-3
Switch Controller Card
Switch Controller Card
A switch controller card (SCC), installed in slot 0 of a switch module, connects to two 
nodes. The SCC has several components:
•
Front Panel of a Switch Controller Card on page 4-3
•
SCC Key Switch on page 4-4
•
SCC Temperature Sensors on page 4-4
•
SCC LEDs on page 4-5 
•
Alarm Port on page 4-6
Front Panel of a Switch Controller Card
002
Front Panel
Key 
Switch
L R
ENV
PON
A
B
RJ-11 Connector 
for Remote Alarm 
Contacts
RS-232 Host 
Connectors 
(serial ports) 
With TX and RX 
Activity LEDs
Alarm
TX
RX
TX
RX










