Extron Electronics Matrix 200 - Manual (Page 24)

Extron • Matrix 200 • User’s Manual
Chapter 2 • Hardware Installation
Checksum Disable Jumper
The Matrix 200 is shipped with JMP3 installed to disable the Checksum feature.
To enable it, remove the top cover (page 2-2) and remove JMP3. See picture
below.
_______ Note: When Checksum is disabled, the Cks1 and Cks2 bytes must still be
included. They must be data bytes (have a value between 80h and FFh).
Enabling the Part Number Jumper
The Matrix 200 reports its unit part number if the JMP4 jumper on the main board
is installed. This jumper has no other effect on the system and is factory set.
Installing the Security Jumper
The security code feature is described in Chapter 1, and implemented in Chapter
4, menu 8. It can only be used if JMP2 is installed.
Note: If the security is set and the code is not known, you cannot access the
Matrix. Remove this jumper and reinstall it to unlock the Matrix and reset the
code. At some point in time, power must be applied with the jumper out for the
controller to recognize this change. To reactivate the security feature, reinstall
JMP2 before putting the cover back on.
Red
Black
4
4
2-8