Unit installation

BMB01 – Installation Guide
3 Controls and Indicators
ADDRESS SWITCH COMMS LED PROCESSOR HEALTH LED
LK3
TERMINATOR LINK
LK4
INTERNAL PULL-UP
ENABLE (1-4)
LK5
INTERNAL PULL-UP
ENABLE (5-8)
BMB01 Controls and Indicators
Control / Indicator Description
ADDRESS SWITCH Enables addresses in the range 1 to 9 to be set.
LK3
RS485 TERMINATOR LINK
Link MUST be fitted to the last (or only) BMB01on the RS485 bus in order to
correctly terminate the bus.
LK4
INTERNAL PULL-UP ENABLE (1-4)
Fit link to enable internal pull-ups on the anodes of the opto-isolators for
Digital inputs 1 to 4.
LK5
INTERNAL PULL-UP ENABLE (5-8)
Fit link to enable internal pull-ups on the anodes of the opto-isolators for
Digital inputs 5 to 8.
COMMS LED Flashes very fast when the unit is transmitting RS485 data.
PROCESSOR HEALTH LED
Flashes slowly (approx once per second) when comms is detected ok.
Flashes fast (approx twice per second) when no comms is detected.
No LED activity indicates processor fault or loss of power.
Issue: 02 Complete, Approved
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