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TPCMQ48 SERIES
INSTALLATION & OPERATING MANUAL
Manual No. tpcmq48-4
tpcmq48-man-rev4-0116.indd
9.2.12
Inhibit
This signal can be used to control the main output of the unit in order to turn it on and off.
A low signal on this pin will turn the main output off. This behavior can allow a system to
be setup so that the main output will not come on until commanded by a supervisory circuit.
The driving circuit should be capable of sinking and sourcing at least 0.5mA.
9.2.13
SCL, SDA
These are the I²C serial data bus signals used for digital communication. They require pull-
up resistors or active pull-up circuits to 3.3V or 5V.
9.2.14
GA0, GA1, GA2
These are the I²C interface address lines. They are used to set the hardware address of each
module on the backplane. Each module should have a unique address when connected using
the same serial bus.
The address lines should either be tied high (to 5VSB) for ‘1’ or low (standby return) for
‘0’.
10.0 MECHANICAL SPECIFICATIONS
The mechanical dimensions of the TPCMQ48 Series module are shown.
Note that while TPCMQ48 Series modules are designed for hot-swap applications, fixing points are
provided for applications not requiring this capability.
Figure 3 - Module Dimensions
