HP ProCurve 420 Installation And Getting Started Manual page 62

Safety and EMC Regulatory Statements
Safety Information
C-2
Regulatory Model Identification Number
For regulatory identification purposes, this product has been assigned a
Regulatory Model Number (RMN). The RMN for your product is RSVLC-
0301. The RMN should not be confused with the marketing name (Wireless
Enterprise Access Point 420) or the Product Number (J8130A, J8131A).