DZS ZNID-GPON-2428B1

Overview
Additional models are covered by the FCC certification:

Two models referred to as GE 4 PORT WiFi Gateway lack the GPON fiber connection of the GPON 4 Port WiFi Gateway models. Models with 26 in the model number lack 5GHz a/n/ac support of the models with ''28' in the number.
 * ZNID-GE-2428B1 "GE Uplink, 2 POTS, 4 GigE, 2x2 2.4GHz 802.11b/g/n and 3x3 5.8GHz 802.11a/n/ac, 1 USB port"
 * ZNID-GE-2426B1 "GE Uplink, 2 POTS, 4 GigE, 2x2 2.4GHz 802.11b/g/n, 1 USB port"
 * ZNID-GPON-2428B1 "GPON Uplink, 2 POTS, 4 GigE, 2x2 2.4GHz 802.11b/g/n and 3x3 5.8GHz 802.11a/n/ac, 1 USB port"
 * ZNID-GPON-2426B1 "GPON Uplink, 2 POTS, 4 GigE, 2x2 2.4GHz 802.11b/g/n, 1 USB port"