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G3X Installation Manual – Installation Overview Page 1-3
190-01115-01 Revision A
1.4 General G3X LRU Specifications
1.4.1 Garmin LRU Part Numbers
Table 1-1. G3X LRU Part Numbers
LRU Unit Only Part Number Assembly Part Number
GDU 370 Americas DB 011-01747-15 010-00667-15
GDU 370 Atlantic DB 011-01747-20 010-00667-20
GDU 370 Pacific DB 011-01747-35 010-00667-35
GDU 375 Americas DB 011-01747-30 010-00667-25
GMU 44 011-00870-10 010-00296-10*
GSU 73 011-01817-00 010-00691-00*
GTP 59 011-00978-00* NA
*Included in G3X LRU Kit (K10-00016-00)
Table 1-2. Contents of GDU 37X Assembly (010-00667-XX)
Item Garmin P/N Quantity
GDU 37X 011-01747-XX 1
GDU 37X Connector Kit 011-01921-00 1
GDU 37X Nutplate
115-01054-00 1
SD Card, Dummy 145-00561-00 1
Important Safety and Product Information 190-00720-50 1
GDU 37X Quick Reference Guide 190-01055-00 1
Jeppesen Free Single Update 190-10003-03 1
1.4.2 Power Specifications
All LRUs are capable of operating at either 14 or 28 VDC. Table 1-3 lists current draw specifications.
Table 1-3. G3X LRU Power Requirements
LRU Supply Voltage Current Draw
GDU 37X 10-29 Vdc
1.10 Amp @ 14Vdc
0.55 Amp @ 28Vdc
GMU 44 12Vdc (from GSU 73) Inc. in GSU Current Draw
GSU 73 10-29 Vdc
1.75 Amp @ 14Vdc (Max)
0.80 Amp @ 28Vdc (Max)