Meiko Computing Surface CS-2, Manual

Page: 45 / 52

Installing Backplane Boards
35
5
Figure 5-1 MK515 Components
Meiko may upgrade the H8 ROM from time to time.
The non-volatile RAM (NVRAM) holds system configuration information, such
as the number of module switches. The NVRAM contains Lithium batteries
which have special handling and disposal requirements — your attention is
drawn to the General Precautions on page ii.
External Indicators
Two LEDs (one green, one amber) are visible from the rear of the module. The
green LED is the module controller’s CAN heart beat, the amber light illuminates
each time the controller writes to the CAN bus. These indicators are also dis-
played in the top right hand corner of the module’s LED display.
Reset Switch
The reset switch is not accessible when the board is mounted in the module. It is
used by Meiko engineers when bench testing the board.
H8 ROM
NVRAM
Reset Switch
External power
RS232
Module Backplane Connector
.
.