40 GE INFORMATION D20MX INSTRUCTION MANUAL
CHAPTER 2: INSTALLING THE D20MX
Package contents
The following items are provided as part of your D20MX shipment:
• D20MX unit (GE part number 526-3001, or 526-3003, or 526-3005)
• For 526-3005LF only:
– D20MX to Fiber Card Harness (975-1236)
– D20MX 100BASE-FX Rear LC FO Card (part number 526-3103LF) or D20MX
100BASE-FX Rear ST FO Card (part number 526-3104LF)
• Lower filler plate (part number 953-1015)
• Blank plate for D20MX install (part number 953-1014)
•0 V wire cable (part number 975-1237)
• For 526-3005LF installed in 500-0280 only:
– Termination Panel, D20MX extended mounting (952-2087)
• GE Digital Energy Product Documentation CD (GE part number 581-0002)
• GE Digital Energy D20MX Documentation CD (GE part number 588-0075 V14X)
Verify that you have received all items. GE parts include a unique number, typically in the
format XXX-XXXX, that can be used as a reference.
Connecting the power supply
The D20MX processor board is supplied power through the WESTERM D20M+ SS
backplane. Power connections to the backplane are made on connector block TB1.
For the WESTERM D20M+ SS and WESTERM D20M+ (see Figure 13, “WESTERM D20M+SS:
power supply connections”) the power supply connections:
• 1 and 2 are used for input power connections based on the D20 power supply
• 4 and 5 can be used as a switched auxiliary power supply source
• 7 and 8 can be used externally for status wetting, contact wetting and/or
miscellaneous power connections, if applicable.
Figure 13: WESTERM D20M+SS: power supply connections
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