Grandstream GDS37xx NFC Key Fob (G-AD2), MIFARE DESFire EV3, Pack of 100

Overview

The Grandstream GDS37xx NFC Key Fob (G-AD2) is a tap-to-open key fob for a door fitted with a Grandstream GDS37xx video door station. Staff, residents or contractors hold the key fob against the reader area on the door station and the door unlocks. It uses the MIFARE DESFire EV3 chip with AES-128 (Advanced Encryption Standard) encryption, Grandstream’s higher-security credential type, and this pack holds 100 fobs.

Is it right for you?

• Suits doors where cloning resistance matters, such as a server room or a cash area, on a GDS3700 series door station (GDS3725, GDS3726, GDS3726Q or GDS3727).
• For general entry where encryption is not a concern, the G-AC1 key fob with the MIFARE Classic EV1 chip is the basic option.
• If people would rather keep a credential in a wallet or on a lanyard, the same chip comes as the G-AD2 card.
• It is a credential, not a reader: it works with the reader built into a GDS37xx door station.

Key features

• MIFARE DESFire EV3 chip at 13.56 MHz with 2 KB of memory and AES-128 encryption, which makes the credential harder to clone.
• Reading distance greater than 10 mm, so a tap close to the reader area is enough.
• Passive RFID (radio frequency identification) credential, also called NFC (Near Field Communication): no battery to replace.
• Rated for more than 100,000 reads, so it lasts through daily use.
• PVC laminated, 41 x 32 x 3.8 mm, small enough for a key ring.
• Works from -30 to 60 °C and can be stored from -30 to 80 °C, so heat and cold at an outside door are not a problem.

What else you need

• A Grandstream GDS3700 series video door station (GDS3725, GDS3726, GDS3726Q or GDS3727), which reads 13.56 MHz MIFARE Classic and MIFARE DESFire credentials.
• A user record for each person in the door station, since every key fob is enrolled against a user. The GDS3720 series stores up to 5,000 cards.

Installation

No installation is needed. Enrol each key fob against a user, then hold it flat against the reader area above the call button until the door station confirms access.

Software and licences

Credentials are enrolled to users in the door station web interface, in GDS Manager or on the SecureAccess platform. No licence is needed for the fobs themselves.

Before you buy

• Two credential types exist for the GDS37xx: G-AD2 and G-AC1. G-AC1 uses MIFARE Classic EV1 with 1 KB of memory and is the basic type. G-AD2 uses MIFARE DESFire EV3 with 2 KB of memory and AES-128 encryption for higher security, with a shorter reading distance of over 10 mm.
• This is a pack of 100 fobs. The same chip is also available as a card.