
16
Connectors, Indicators, Controls, and Jumpers
Series C
Federal Signal www.fedsig.com
P3
Balanced Mic Input
1 – GND
2 – Balanced Input
3 – Balanced Input
M1
Ethernet Module
Top Left Yellow LED – Network link status
Off – no link has been detected
On – a link has been detected
Top Right Green LED – Serial port activity/Network activity
Off – the serial channel is idle
Blinking – serial data is transmitted or received
Figure 2 Back of the