Nortel Meridian 1 Manual page 245

5-60 SL-1 RT system upgrades
553-3001-250 Standard 14.00 August 1996
8 If an NT8D69 MDU is installed in the RT system, remove it by gently
pulling the unit forward two or three inches.
Wait at least 10 seconds before you remove the MDU from the card
slot to allow the hard disk to stop spinning.
9 Install the QMM42 cartridge for release 17 software on the new MSI or
EMSI card for CPU 1.
Note: If the new card is a QPC584 MSI card, it must be vintage L or
later.
10 Set the ENB/DIS switch on the new MSI or EMSI card to DIS.
11 On the MSI or EMSI card, set positions 1, 5, and 7 on switch SW3 to ON.
12 Install the NTND16 MDU into its assigned position in the CPU/Network
shelf card slots. Install the MDU in the position previously occupied by
the NT8D69 MDU.
13 With the ENB/DIS switch set to DIS, insert the new MSI or EMSI card
into its assigned position.
14 For systems using MSI cards, connect an NT8D80 cable between the
faceplate connector on the MSI card and connector 0 on the NTND16
MDU. For systems using EMSI cards, connect an NT9D89 cable
between the faceplate connector on the EMSI card and connector 0 on
the NTND16 MDU.
15 In CPU 1, set the ENB/DIS switch on the MSI or EMSI card to ENB.
16 Insert ED floppy disks with release 17 software into the NTND16 MDU
drives. Insert disk A in DRV A and disk B in DRV B.
CAUTION