GE D20 Installation And Operation Manual page 125

GE Energy
Product Combinations
Notes 1. Not all non-VME backplanes pass: use 517-0224-05A, 517-0254-02 or newer.
The VME D20ME, 526-2005, does NOT work with non-VME backplanes. You
must use the non-VME D20ME, 526-2004.
2. Not all SIO communication panels pass: use 517-0225-09 or newer. The non-
VME D20ME, 526-2004, does NOT work with VME backplanes. You must use
the VME D20ME, 526-2005.
3. Ethernet cards should only be installed in the new D20 MX Chassis, or a D200
chassis. Older D20 horizontal chassis have no place for the interface cable
between the D20EME and the MIC to run inside the chassis. Although you can
physically bring this cable out the back of the chassis between the metalwork
and the PCB, it invalidates the compliance to industrial emissions standards.
4. Do not use 16MB Micro Memory cards with the D20ME. Use 8MB card(s) as
required. 16MB Micro Memory cards can be used with D20M++ cards.
5. D20 M++ cards cannot be used with D20ME or D20EME cards in systems with
more than three processor boards. Occasional crashes can occur in these systems.
6. There are some limitations to the number of nodes you can have in a D20 VME
Chassis:
− Due to the mounting arrangement of the Serial I/O communications interface
− The D20 Power Supply +5V output can supply up to 5A. Each D20ME
− The D20 Power Supply +12V output can supply a maximum of 1A. The
General
Full
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panel on a D20 chassis, it is not always practical to have more than one node.
On the 500-0280 MX Chassis you can have one rack mounted com panel
(517-0225) and one rear mounted com panel (571-0230), supplying physical
com channels for two processor nodes. Additional nodes could be dedicated
to Ethernet and automation applications if desired.
requires 1A, and the D20EME requires 110mA. The remaining power can be
used to line power 5V devices on the RS-232 communication ports. This
means the D20 Power Supply can power up to 4 D20ME cards and 1
D20EME.
D20EME requires 0.6A. The remaining power can be used to line power 12V
devices on the RS-232 communication ports. In practice, this means that the
D20 Power Supply can power either a D20EME, or a few modems. If both
Ethernet and modems, or several modems, are required then an external 12V
power supply is generally required.
Common Power Consumption Ratings:
•
D20EME w/ MIC
•
D20ME
•
WESDAC 202 Modem
•
Telenetics® Modem
Example: 1 D20ME, 1 D20EME w/ 10BaseT, and 1 Telenetics Modem
exceeds the available +12V Capacity
Installation and Operations Guide
0.60A @ +12V
0.10A @ +12V
0.10A @ +12V
0.35A @ +12V
994-0078-2.00-7
D20/D200
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