Access port
One VLAN only, untagged. Fine for a printer. Wrong for an AP that serves multiple SSIDs.
UniFi Labs Glossary
Plain definitions of the UniFi networking, camera, and door access terms used in Gbit Tech's interactive labs. Tap a term to read it.
A
Adopt
Bring a new UniFi device under your UniFi app so you can manage it. Until then it shows Pending Adoption.
AUX
Extra Door Hub relay for a door operator (dry) or a siren or chime (powered 12V). Not for the main lock.
Used in Lab 06
B
Basic Protection
RAID 5 with 3 or more drives. Protects against 1 drive failing.
Used in Lab 11
C
Client isolation
WiFi setting that stops guest clients from talking to each other. Keep on for Guest.
Used in Lab 01
COM
Common side of the LOCK relay pair. It lands with NC or with NO, not both.
Used in Lab 06
D
Debug Console
Built-in browser shell on the console.
Used in Lab 10
Device Bridge
A pair of UniFi radios that replaces a network cable between two buildings or spots.
Used in Lab 15
Device SSH Settings
Network setting holding the SSH login an adopted device uses. Factory default devices use ui / ui.
Used in Lab 10
DHCP Option 43
DHCP option that hands devices the Network host address so they adopt across VLANs.
Used in Lab 10
Door Attendant / receiver
User assigned to get the door call. Not on the list means no Unlock for that door.
Used in Lab 03
Door Hub
The Access controller at the door. It wires the lock, door sensor, exit button and reader.
Door position sensor (DPS)
A contact on the door and frame that tells the hub whether the door is open or closed.
Used in Lab 16
DRY
LOCK mode with no power from the hub. An outside supply can run a non-12V lock, up to 30V DC at 1 A.
Used in Lab 06
F
Factory reset
Clears the camera so it isn't adopted anywhere.
Used in Lab 14
Fail-safe
A lock that needs power to stay locked, like a maglock. Wire it to LOCK NC and COM.
Used in Lab 06
Fail-secure
A lock that needs power to unlock, like most strikes. Wire it to LOCK NO and COM.
Used in Lab 06
Flex budget
USW-Flex downstream totals by input: AF 8W, AT 20W, BT or 60W injector 46W (set Power Source to PoE Injector).
Used in Lab 02
Free egress
Leaving without badging out.
Used in Lab 16
G
Gateway zone
The router itself, which answers DHCP and DNS. Block a network's zone from the Gateway and its clients get no IP or DNS.
H
High-quality period
Recent footage stays full quality. Older footage is kept at low quality.
Used in Lab 13
Hot swap
Replace a drive while the UNVR stays on.
Used in Lab 11
I
Inform
Device check-in URL to the Network application, usually controller host on port 8080, path /inform.
Used in Lab 10
Injector
A box that adds PoE power to a cable. Too weak a class, like an AF injector on a loaded Flex, is a common field mistake.
Used in Lab 02
Isolate Spokes
Site Magic Hub and Spoke setting. Each spoke site reaches the hub but not the other spokes.
Used in Lab 09
L
Line of sight
A clear straight path between the two bridge ends, with no roof, wall, or trees in the way.
Used in Lab 15
LOCK
The Door Hub's main lock relay, with NO, NC and COM terminals. Set it to POWERED for 12V from the hub, or DRY for no power.
Used in Lab 06
M
Managed by Other
Devices list state. Another instance of UniFi Network owns the device, including the same console after a factory restore. Fix: restore a backup, factory reset and re-adopt, or reassign in the mobile app.
Used in Lab 10
Max draw
The most watts a device can pull, from its datasheet (IR on, at boot). UniFi PoE budgets use this, not the quieter live reading.
Used in Lab 02
mDNS Proxy
Gateway setting that passes device discovery between networks, so a phone on one VLAN can find a TV or printer on another. Auto, or Custom with the networks you pick.
Used in Lab 08
Mesh
Site Magic layout where every site links straight to every other site. It can't NAT overlapping subnets.
Used in Lab 09
N
Native VLAN
The untagged VLAN on a switch port. UniFi device management usually rides here. Set as Native VLAN in Port Manager.
NC/COM
Fail-safe pair. Unlock opens the relay and drops power so a maglock releases.
Used in Lab 06
NO/COM
Fail-secure pair. Unlock closes the relay and applies power so a strike unlocks.
Used in Lab 06
P
Passive PoE
Power sent on the cable with no handshake. It's always on when enabled, so only plug in devices made for it.
Used in Lab 15
Pending Adoption
Devices list state for a device that has checked in and is waiting for you to click Adopt.
Used in Lab 10
PoE Availability
The total PoE power the switch can share across its ports.
Used in Lab 12
PoE budget
Every device's max draw added up, compared with what the switch or injector can supply. Go over it and devices lose power.
Used in Lab 02
PoE class
AF (about 15W), AT (about 30W), BT / PoE++ (higher). UniFi budgets on documented max draw, not quiet daytime watts.
Used in Lab 02
PoE output
A port on the UDB-Pro that powers a PoE device, here the camera. It only runs with PoE+ coming in.
Used in Lab 15
PoE+
802.3at. Up to 25.5W to the device.
Used in Lab 12
PoE++
802.3bt Type 3. Up to 51W to the device.
Point to multipoint
One radio serving many bridges at once, like the UDB-Pro-Sector.
Used in Lab 15
POWERED
LOCK power from the hub: 12V DC, up to 1 A. Do not add a second 12V supply.
Used in Lab 06
R
Recording destination
The NVR the camera records to. Picked on the phone during adoption.
Used in Lab 14
Recording Retention
A limit on how long recordings are kept. Not a promise.
Used in Lab 13
Remote Unlock via Endpoint
Access setting. When off, Endpoint receivers can talk on a call but cannot unlock.
Used in Lab 03
Repair
Rebuilds the protected storage onto the new drive. Things run slower until it finishes.
Used in Lab 11
Request to exit (REX)
A button, motion sensor, or panic bar that unlocks the door from the inside without a credential.
Used in Lab 16
S
set-inform
Device SSH command that tells a UniFi device where its Network host is, e.g. http://192.168.1.10:8080/inform.
Used in Lab 10
STUN
UDP 3478 helper for remote adoption and remote management. Not the adoption path itself: adoption needs TCP 8080 to the Network host.
Used in Lab 10
Super Encoding
Makes each day of recording smaller.
Used in Lab 13
T
Tagged VLAN Management
Port setting for which VLANs ride tagged (802.1Q): Allow All, Block All, or Custom. Guest and IoT SSIDs need their VLANs tagged on the AP uplink.
Teleport Adoption
Adopts a camera at another location to the NVR at the main house over the internet. No VPN, no port forwarding.
Used in Lab 14
Trigger level
Which contact state counts as active. Open active (NC) or close active (NO).
Used in Lab 16
Trunk
A port carrying the Native VLAN plus tagged VLANs. The right setup from switch to AP, or switch to gateway, when there are several networks.