Landis+Gyr Gridstream IV Series User And Installation Manual page 27

Chapter 3 - Field Configuration
6. Type the letter n. The system prompts for a name.
7. Type 81 to access the network filtering menu and press [Enter].
8. The default network filtering value is 1.To disable network filtering, type 0 and press [Enter]
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Figure 3 - 17. Name prompt
Figure 3 - 18. Type 81
Figure 3 - 19. Network Filtering value
98-1031 Rev AA Series IV Concentrator U and I Guide
Landis+Gyr