LB1000

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The LB1000 is a standard LED board supplied with NB10x0 network boards. Table below shows LED arrangement for this board. LED numbers correspond to the numbers shown on the mechanical drawing for the LB1000. LED control is described in the External LED Control topic of the NB1000 documentation.

 

LED #

Color

Series Resistor value (Ohm)

Function

#8

Green

0(1)

Status LED, connected to the SG line of the EM1000(3)

#7

Red

0(1)

Status LED, connected to the SR line of the EM1000(3)

#11

---

---

<not installed>

#6

Green

220

Ethernet status LED, connected to the EG line of the EM1000

#5

Yellow

220

Ethernet status LED, connected to the EY line of the EM1000

#10

---

---

<not installed>

#4(2)

Yellow

220

Signal strength bar, #1 (the lowest level).

#3(2)

Yellow

220

Signal strength bar, #2.

#9(2)

Yellow

220

Signal strength bar, #3.

#2(2)

Yellow

220

Signal strength bar, #4.

#1(2)

Yellow

220

Signal strength bar, #5 (the highest strength).

 

Note 1. This resistor's value is 0 because there is another resistor connected in series with the EM1000's I/O line and located on the NB10x0 board.

Note 2. This LED is controlled through an additional "LED bar" circuit, described in the External LED Control topic.

Note 3. Further information on status LEDs can be found in Appendix 1: Status LEDs.