Ubiquiti UA-G3-INTERCOM vs SDC IPDSE: Specification Comparison
Both the Ubiquiti UA-G3-INTERCOM and the SDC IPDSE occupy the networked door-station category: each is a wall-mounted, IP-connected unit designed to manage physical door entry via credential readers and remote unlock. However, they differ substantially in architecture — the UA-G3-INTERCOM is a self-contained all-in-one video intercom terminal, while the IPDSE is an IP-based access control expansion board housed in an enclosure, scaling to multi-door grids. Buyers evaluating ruggedized entry hardware, credential flexibility, power method, and system scalability will find these specs directly relevant to a purchasing decision.
In This Guide
- Which unit supports a broader range of credential types and entry methods?
- How do these units compare on power input, environmental protection, and operating temperature?
- Which product scales more effectively across multi-door or enterprise deployments?
- Which should you choose: the UA-G3-INTERCOM or the IPDSE?
- Side-by-Side Specs
- FAQ
Which unit supports a broader range of credential types and entry methods?
The UA-G3-INTERCOM supports NFC (Forum tags T1T, T2T, T3T, T4T, and T5T), PIN code entry, and mobile app unlock via the UniFi platform. The spec sheet also lists a microphone (audio intercom capability) and a factory reset button as the only physical button. No Wiegand interface or RS-485 terminal bus is listed for the UA-G3-INTERCOM.
The SDC IPDSE supports proximity cards, keypad entry, NFC/13.56 MHz credentials, and Wiegand 26–37 bit readers, with RS-485 terminal bus and TCP/IP communication. It is explicitly described as compatible with mixed-credential environments. The IPDSE supports up to 60,000 users with up to 2 credentials per user. The UA-G3-INTERCOM does not list a maximum user count in the provided specs.
For installations requiring Wiegand-based legacy readers, RS-485 bus integration, or a large stored-user database, the IPDSE's credential breadth is the stronger match. The UA-G3-INTERCOM's mobile unlock and NFC tag range (T1T–T5T) provide flexibility within the UniFi ecosystem but lack a Wiegand output specification.
How do these units compare on power input, environmental protection, and operating temperature?
The UA-G3-INTERCOM is PoE-powered (802.3af, 48V DC, 13W maximum), requiring a single Gigabit RJ45 run for both data and power. It carries an IP65 rating and an operating temperature range of −30°C to 60°C (device body), with the display rated separately to −25°C to 60°C. The enclosure is aluminum alloy with UV-stabilized polycarbonate and glass, on a powder-coated stainless steel mount. Certifications include UL 294, CE, FCC, IC, and CAN/ULC-60839-11-1.
The IPDSE is powered at 12VDC, 120 mA maximum. Its specs list PoE+ (802.3at) under power type, but no IP weather-resistance rating is provided in the available specifications. No operating temperature range is listed for the IPDSE. The IPDSE weighs 1 lb; no enclosure material or outdoor suitability statement appears in the provided specs.
The UA-G3-INTERCOM has a clearly documented outdoor envelope: IP65, −30°C to 60°C, and UL 294 listing. The IPDSE's environmental ratings are not present in the provided specifications, making a direct outdoor-suitability comparison impossible on available data alone.
Which product scales more effectively across multi-door or enterprise deployments?
The UA-G3-INTERCOM is managed through the UniFi platform and mobile app. The provided specifications do not state a maximum door or user count for the UA-G3-INTERCOM, nor do they describe multi-controller networking or software expansion tiers.
The IPDSE is designed explicitly for scalability: it operates as a standalone single-door controller, expands to a 32-door system via its built-in web server, and reaches up to a 100-door grid when managed by SDC PLUS software. User capacity is stated as 60,000 users. Communication protocols include TCP/IP (DHCP or static), Wiegand, and RS-485, enabling integration with third-party access control software and existing reader infrastructure.
For multi-door deployments — particularly those requiring 32- to 100-door coverage, legacy Wiegand hardware, or a large enrolled-user database — the IPDSE's architecture is purpose-built for that scope. The UA-G3-INTERCOM's scalability ceiling is not defined in the provided specs, limiting a direct numerical comparison on that dimension.
Which should you choose: the UA-G3-INTERCOM or the IPDSE?
Our take: The UA-G3-INTERCOM is the stronger choice when the deployment is outdoors, PoE-cabled, and integrated into a UniFi access-control ecosystem requiring a single-cable all-in-one intercom terminal. Its IP65 rating, −30°C to 60°C operating range, UL 294 certification, and 802.3af PoE (13W, 48V DC) make it a well-documented outdoor unit. The IPDSE is the stronger choice when the project demands multi-door scalability (up to 100 doors), a large user database (60,000 users), or Wiegand 26–37 bit and RS-485 protocol interoperability with existing readers. Key deltas: the UA-G3-INTERCOM has a stated IP65/−30°C outdoor rating while the IPDSE lists no IP or temperature spec; the IPDSE stores up to 60,000 users versus no stated limit for the UA-G3-INTERCOM; and the IPDSE scales to 100 doors versus no multi-door specification for the UA-G3-INTERCOM. Buyers standardized on UniFi should evaluate the UA-G3-INTERCOM; enterprise or legacy-integrated deployments should evaluate the IPDSE.
Side-by-Side Comparison
Spec-for-spec, from manufacturer data.
| Specification | Ubiquiti UA-G3-INTERCOM | SDC IPDSE |
|---|---|---|
| Form Factor | All-in-one intercom terminal | Expansion board with enclosure |
| Power Input | PoE 802.3af, 48V DC, 13W | 12VDC, 120 mA max; PoE+ (802.3at) listed |
| IP Rating | IP65 | — |
| Operating Temp (Device) | −30°C to 60°C | — |
| Enclosure Material | Aluminum alloy, UV-stabilized polycarbonate, glass | — |
| Credential Types | NFC T1T–T5T, PIN, mobile app | Proximity, keypad, NFC 13.56 MHz, Wiegand 26–37 bit |
| Communication Protocols | Gigabit RJ45 (data + PoE) | TCP/IP 100/10 Mbps, Wiegand, RS-485 |
| Max Users | — | 60,000 (up to 2 credentials per user) |
| Door Scalability | — | 1 standalone; up to 32 (web server); up to 100 (PLUS software) |
| Management Platform | UniFi platform, mobile app | Built-in web server; SDC PLUS software |
| Audio | Microphone supported | — |
| Weight | 965 g (device); 445 g (bracket) | 1 lb (0.45 kg) |
| Certifications | CE, FCC, IC, UL 294, CAN/ULC-60839-11-1, NDAA | — |
| NDAA Compliant | Yes | — |
| Lock Relay Output | — | SPDT 5A @ 30VDC (main); 1A @ 30VDC (auxiliary) |
| Warranty | Manufacturer warranty (term not specified) | Lifetime |
Frequently Asked Questions
Which should you choose: the UA-G3-INTERCOM or the IPDSE?
The UA-G3-INTERCOM is the stronger choice when the deployment is outdoors, PoE-cabled, and integrated into a UniFi access-control ecosystem requiring a single-cable all-in-one intercom terminal. Its IP65 rating, −30°C to 60°C operating range, UL 294 certification, and 802.3af PoE (13W, 48V DC) make it a well-documented outdoor unit. The IPDSE is the stronger choice when the project demands multi-door scalability (up to 100 doors), a large user database (60,000 users), or Wiegand 26–37 bit and RS-485 protocol interoperability with existing readers. Key deltas: the UA-G3-INTERCOM has a stated IP65/−30°C outdoor rating while the IPDSE lists no IP or temperature spec; the IPDSE stores up to 60,000 users versus no stated limit for the UA-G3-INTERCOM; and the IPDSE scales to 100 doors versus no multi-door specification for the UA-G3-INTERCOM. Buyers standardized on UniFi should evaluate the UA-G3-INTERCOM; enterprise or legacy-integrated deployments should evaluate the IPDSE.
Is the UA-G3-INTERCOM or the IPDSE better suited for harsh outdoor environments?
Based on available specifications, the UA-G3-INTERCOM is the documented outdoor unit: it carries an IP65 rating and an operating temperature range of −30°C to 60°C (device), with UL 294 and CAN/ULC-60839-11-1 certifications. The IPDSE's provided specifications do not include an IP weather-resistance rating or an operating temperature range, so its outdoor suitability cannot be confirmed from the available data.
Can either unit integrate with an existing Wiegand reader infrastructure?
Yes — the IPDSE supports Wiegand 26–37 bit readers and also communicates via RS-485 terminal bus and TCP/IP, making it compatible with existing proximity and keypad reader installations. The UA-G3-INTERCOM's provided specifications do not list a Wiegand output or RS-485 interface; its credential methods are NFC (T1T–T5T tags), PIN, and UniFi mobile unlock.
Which product is better for a larger multi-door deployment?
The IPDSE is explicitly designed for multi-door scaling: it manages 1 door standalone, up to 32 doors via its built-in web server, and up to 100 doors with SDC PLUS software, supporting 60,000 users. The UA-G3-INTERCOM's maximum door and user capacity are not stated in the provided specifications, so its scalability ceiling for enterprise deployments cannot be confirmed from available data.
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