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LP1210 |
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The LP1210 is a
Ten Channel Loop Power Supply that may be used to convert
MIL-188-114 data to 120VDC neutral loop data. The loop
current of each channel may be set for either 20 or 60
milliamperes (Mark condition). Each of the ten channels
includes optically isolated circuitry for MIL-188-to-loop
and Loop-to-MIL-188 conversion, allowing use in a full
duplex send-receive system.
Electronic circuits for each channel are identical, each
contained on a separate 4.5" x 6" plug-in card. Each card
includes 5 on-board LED indicators to assist in tracing
system faults and maintenance of the LP1210. Each card may
be separately removed from the main chassis via a hinged
door in the LP1210 front panel. The low voltage regulator
circuitry is contained on a plug-in circuit card and is also
removable through the front panel. This regulator card also
includes LED indicators. A circuit extender PC card is
included with each LP1210 to further assist in maintenance.
An internal 100 CFM blower provides cooling for internal
power resistor and transformers. Separate DB-25P rear-panel
connectors are provided for each of the ten MIL-188-144 data
I/O connections; a separate 6-terminal barrier strip is
provided for each channel Loop In/Out connection.
The LP1210 is designed for rugged service and has a
calculated MTBF in excess of 100,000 hours (MIL-HDBK-217D).
The operating temperature range is 0 C to +50 C, and the
storage range is -51 C to +68.3 C
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the LP1210.. |
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