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Page 31 NEC Confidential
Software Upgrade (1)
1. Power off the system.
2. Store new Main Software data in your
Compact Flash Card (CF) by using PC.
3. Insert the CF Card into “Memory Card
Slot” on PZ-VM21.
4. Open Sub-Cover of Main KSU, press and
hold on to S1 switch as indicated:
5. AC Power Switch ON.
New Main Software will be provided by NEC Infrontia.
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Page 32 NEC Confidential
Software Upgrade (2)
6. System Power Switch ON.
7. Hold on to S1 switch for about 3-4 seconds and
release it.
9. Now the Status LED (D2-5) starts flashing RED.
10. System Power Switch OFF.
11. Remove CF card from PZ-VM21.
12. System Power Switch ON.
To check the Main Software Version :
(On-Hook Condition)
Press “Enter” Key and Dial 821.
Main Ver.: 07.00
0-60-B9-C1-F9-7C
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Page 33 NEC Confidential
Main Software Version Confirmation
1. On-hook condition.
2. Press Enter Key (Navigation Key).
3. Dial 821 to show the Main Software version &
Hardware Key Code.
4. Press Right Key (Navigation Key) to show the Main
Software version & MAC address.
5. Off-Hook and return to Time & Date mode.
Follow the steps stated below to check your SL1000 main software version by
using the Multi-Line Telephone.