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Bryant 548J*14D User Manual

Page 26

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26

C07170

Fig. 48 -- BACview

6

Handheld Connections

Table 3 – LEDs

The LEDs on the RTU--MP show the status of certain functions

If this LED is on...

Status is...

Power

The RTU MP has power

Rx

The RTU MP is receiving data from the network segment

Tx

The RTU MP is transmitting data over the network segment

DO#

The digital output is active

The

Run and Error LEDs indicate control module and network status

If Run LED shows...

And Error LED shows...

Status is...

2 flashes per second

Off

Normal

2 flashes per second

2 flashes,

alternating with

Run LED

Five minute auto---restart delay after system error

2 flashes per second

3 flashes,

then off

Control module has just been formatted

2 flashes per second

4 flashes,

then pause

Two or more devices on this network have the

same ARC156 network address

2 flashes per second

On

Exec halted after frequent system errors or

control programs halted

5 flashes per second

On

Exec start---up aborted, Boot is running

5 flashes per second

Off

Firmware transfer in progress, Boot is running

7 flashes per second

7 flashes per second, alternating with

Run LED

Ten second recovery period after brownout

14 flashes per second

14 flashes per second,

alternating with Run LED

Brownout

On

On

Failure. Try the following solutions:
S

Turn the RTU---MP off, then on.

S

Format the RTU---MP.

S

Download memory to the RTU---MP.

S

Replace the RTU---MP.

548J

*14D