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Appendix A: Flash Download procedure Page 145 of 174
M3900 Series Meridian Digital Telephones Description, Installation and Administration
2 Verify that IODU/C 0 is active. You may need to switch IODU/Cs.
LD 137
STAT Get the status of IODU/C
SWAP Switch IODU/Cs if necessary
**** exit program
3 Connect a terminal to the CPSI port in Core/Net 1 to J25 of the I/O panel
at the back of the Core/Net. Be sure it is configured as follows. The
recommended baud rate is 9600, to be the same as the CPSI port.
7 data bits, 1 stop bit, Space parity, Full duplex, XON protocol
4 Place CP 0 in Maintenance by setting the MAINT/NORM switch to
MAINT.
5 In Core/Net 1, disable the CNI cards by setting the ENB/DIS faceplate
switches to DIS
Install software on Core/Net 1
1 Place the CP Install disk that corresponds with the installed CP card type
into the IODU/C in Core/Net 1.
2 Install the CD-ROM into the CD drive:
a. Press the button on the CD-ROM drive to open the CD-ROM disk
holder.
b. Place the CD-ROM disk into the holder with the disk label showing.
c. Use the four tabs to secure the CD-ROM drive.
d. Press the button again to close the CD-ROM disk holder (do not
push the holder in by hand).
3 In Core/Net 1, perform the following three steps in uninterrupted
sequence:
a. Press and hold the MAN RST button on the CP card.
b. Set the MAINT/NORM switch on the CP card to MAINT.
c. Release the MAN RST button.
A sysload begins (cold start). Wait for the Main Menu to appear on the
terminal before proceeding.