10.5.2
S800 I/O bus modem TB820
LED
Color
F
Red
R
Green
P
Green
Rx1
Yellow
Rx2
Yellow
ERx
Yellow
10.5.2.1 Bus modem address
The TB820 bus modem has a unique cluster address that identifies the
module in the software and links it to a parameter.
The address is set with the rotary switch on the module (Fig. 10-4: 1). The
factory-set value must not be changed.
3BHS799208 E01 REV E
Figure 10-4 TB820 bus modem
Indication
Fault in module
Device in operation
Power supply is healthy
Traffic on optical module bus
Traffic on optical module bus
Traffic on electrical module bus
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10 PREVENTIVE AND CORRECTIVE MAINTENANCE
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