Gilderfluke&Co BR-SDC Serial Device Controller - Manual (Page 9)

Br-SDC LEDs, Switches and Connections:
There are only a small number of LEDs, connections and single configuration switch
on each Br-SDC.
Status LEDs:
On the Br-SDC/09, Br-SDC/422:
1) Green ʻHeartʼ LED. This is used so you can see that the Br-SDC is alive. If this
LED doesnʼt flash at least once per second, you should power down the Br-SDC
and check the power supply and connections to the Br-SDC. When in configura-
tion mode, the Br-SDCʼs ʻheartʼ LED will flash at a far faster rate than normal.
2) Red LED attached to the serial data input line on the Br-SDC. Any time the Br-
SDC receives something through its serial port, you will see this LED flash.
3) Yellow LED attached to the serial data transmission line on the Br-SDC. Any time
the Br-SDC sends out something through its serial port, you will see this LED
flash.
On the Br-SDC8:
1) Yellow ʻHeartʼ LED. This is used so you can see that the Br-SDC8 is alive. If this
LED doesnʼt flash at least once per second, you should power down the Br-SDC8
and check the power supply and connections to the Br-SDC.When in configura-
tion mode, the Br-SDCʼs ʻheartʼ LED will flash at a far faster than the normal
ʻRunningʼ rate.
2) Green LED attached to the serial data input on the Br-SDC8ʼs ʻConfig./Mux. RS-
232 portʼ (female DE-09) or ʻMux./RS-422ʼ (female Rj-12) ports. Any time the Br-
SDC8 receives something through this serial port, you will see this LED flash. You
will see this during configuration, or when operating in any of the multiplexer
modes.
3) Red LED attached to the serial data output on the Br-SDC8ʼs ʻConfig./Mux. RS-
232 portʼ (female DE-09) or ʻMux./RS-422ʼ (female Rj-12) ports. Any time the Br-
SDC8 sends something out through this serial port, you will see this LED flash.
You will see this during configuration, or when operating in any of the multiplexer
modes, when serial data received through one of the multiplexed serial ports 1-8
(male DE-09) is routed to the Br-SDC8ʼs ʻConfig./Mux. RS-232 portʼ (female DE-
09) or ʻMux./RS-422ʼ (female Rj-12) ports.
4) Green LED attached to the serial data output on the Br-SDC8ʼs multiplexed serial
ports 1-8 (male DE-09). Any time the Br-SDC8 sends out something through one
Gilderfluke & Co.• 205 South Flower Street • Burbank, California 91502 • 818/840-9484 • 800/776-5972 • fax 818/840-9485
Br-SDC Manual / December 30, 2013 9:24 AM / page 9 of 62