49009-0398 <90-00090>
P
AGE
5
OPERATION
T
here are no specific operating instructions for the 49009
Current Loop Interface Subassembly. The subassembly
starts operation when power is applied to the host module.
The front panel of the 49009 has two LEDs. The upper LED
(red) is labeled XMT and indicates that the unit is transmitting
data. The lower LED (green) is labeled RCV and indicates that
the unit is receiving data.
TECHNICAL SPECIFICATIONS
DESCRIPTION
Input Voltage
Input Current (add to input current
of host module)
@ -24 VDC
@ -48 VDC
Heat Dissipation (add to heat
dissipation of host module)
@ -24 VDC
@ -48 VDC
Operating Temperature Range
Physical Dimensions
Weight
VALUE
+5 VDC and +12 VDC from host module
5 mA (nominal operating)
3 mA (nominal operating)
0.41 Btu/Hr
0.49 Btu/Hr
0° to 55° C.
2.6" x 2.8" x 0.8"
1.2 ounces
If it is necessary to install the subassembly on a host module,
refer to the documentation on the host module for the location of
the subassembly.
To install the subassembly, follow these steps:
1.
If there is a hole plug in the front panel of the host module, remove
the plug.
2.
Remove the three screws from the subassembly standoffs.
3.
Place the subassembly on the board.
• Insert P4 into J4 and P5 into J5.
• Make sure each connector pin goes straight into its socket.
• Make sure the subassembly fits closely on the standoffs.
• The panel should be straight in the opening.
4.
Replace the three screws in the standoffs.
INSTALLATION
