SDC IC-UR48-SPEC vs SDC MC-4PAK: Specification Comparison
Both the SDC IC-UR48-SPEC and the SDC MC-4PAK are wired, 4-door access controllers from SDC Security Door Controls, targeting commercial and institutional access control deployments where a single controller must manage multiple independent entry points. Each supports HID credential formats, OSDP and TCP/IP communication protocols, and a 250,000-user on-board database. This comparison evaluates the two units across the dimensions that matter most to installers and IT buyers: credential and door capacity, power and physical specifications, and protocol integration and compatibility.
In This Guide
- How do the IC-UR48-SPEC and MC-4PAK compare on door and credential capacity?
- How do the IC-UR48-SPEC and MC-4PAK differ in power requirements and physical characteristics?
- Are there differences in protocol support, credential compatibility, and system integration between the two controllers?
- Which should you choose: the IC-UR48-SPEC or the MC-4PAK?
- Side-by-Side Specs
- FAQ
How do the IC-UR48-SPEC and MC-4PAK compare on door and credential capacity?
Both controllers are rated for exactly 4 independent doors and an on-device credential database of 250,000 profiles. Neither unit's specifications indicate any expansion capability beyond 4 doors, and neither lists a tiered licensing structure that would increase or reduce these figures. For deployments within the 4-door, 250,000-user envelope, the two products are spec-equivalent on capacity. No difference in maximum user capacity or door count is documented in the provided specifications for either model.
How do the IC-UR48-SPEC and MC-4PAK differ in power requirements and physical characteristics?
The MC-4PAK specifies an operating voltage of 30VDC and is documented with a weight of 1 lb, a color of White, and a dimension note of ¾" Diameter — though that dimension figure appears to reference an accessory or a specific component rather than the controller enclosure itself, as it is atypical for a 4-door controller chassis. The MC-4PAK also lists its package contents explicitly as the MC-4PAK Controller Unit. The IC-UR48-SPEC provides none of these physical or power specifications: input voltage, weight, dimensions, and color are all absent from its supplied data. Installers who need to verify power-supply compatibility or plan enclosure space should note that only the MC-4PAK documents a voltage requirement (30VDC), while the IC-UR48-SPEC's power needs are unspecified in the data provided.
Are there differences in protocol support, credential compatibility, and system integration between the two controllers?
Both units list OSDP and TCP/IP as their communication protocols and HID as the supported credential format. OSDP enables encrypted, bidirectional communication between the controller and readers, while TCP/IP supports direct LAN integration and remote credential management. Neither specification documents support for additional protocols such as Wiegand, RS-485 (outside of OSDP), or SOAP/REST APIs, nor does either list named software platform compatibility (e.g., specific VMS or access control management software). The IC-UR48-SPEC's tagline references remote credential management as a function of its TCP/IP connectivity; the MC-4PAK similarly describes direct LAN integration. No protocol or integration differentiation is documented between the two models in the provided specifications.
Which should you choose: the IC-UR48-SPEC or the MC-4PAK?
Our take: The MC-4PAK is the stronger choice when power-supply planning and physical installation documentation are required at the design stage, as it is the only unit of the two with a specified input voltage (30VDC) and a listed shipping weight (1 lb). Beyond that single documented difference, the two controllers are specification-equivalent in every decision-relevant dimension provided: both manage 4 independent doors, store up to 250,000 HID credentials on-device, communicate over OSDP and TCP/IP, require wired connectivity, and carry a lifetime warranty. Neither spec sheet documents software platform compatibility, Wiegand support, or enclosure dimensions in a way that distinguishes them. Buyers selecting purely on feature specifications — door count, user capacity, protocol support, and warranty — will find no documented advantage for either unit. The IC-UR48-SPEC's datasheet should be consulted to confirm its voltage requirements before finalizing a power-supply design.
Side-by-Side Comparison
Spec-for-spec, from manufacturer data.
| Specification | SDC IC-UR48-SPEC | SDC MC-4PAK |
|---|---|---|
| Product Type | 4-Door Access Controller | 4-Door Access Controller |
| SKU | IC-UR48-SPEC | MC-4PAK |
| Doors Supported | 4 independent doors | 4 doors per controller |
| Max User / Credential Capacity | 250,000 profiles | 250,000 credentials |
| Credential Format | HID format cards and readers | HID compatible |
| Communication Protocols | OSDP and TCP/IP | OSDP and TCP/IP |
| Connectivity | Wired | Wired |
| Input Voltage | — | 30VDC |
| Color | — | White |
| Weight | — | 1 lb |
| Dimensions | — | ¾" Diameter (component-level; see datasheet for enclosure) |
| Package Contents | — | MC-4PAK Controller Unit |
| Warranty | Lifetime | Lifetime |
| Datasheet | /content/product-datasheets/IC-UR48-SPEC.pdf | /content/product-datasheets/MC-4PAK.pdf |
Frequently Asked Questions
Which should you choose: the IC-UR48-SPEC or the MC-4PAK?
The MC-4PAK is the stronger choice when power-supply planning and physical installation documentation are required at the design stage, as it is the only unit of the two with a specified input voltage (30VDC) and a listed shipping weight (1 lb). Beyond that single documented difference, the two controllers are specification-equivalent in every decision-relevant dimension provided: both manage 4 independent doors, store up to 250,000 HID credentials on-device, communicate over OSDP and TCP/IP, require wired connectivity, and carry a lifetime warranty. Neither spec sheet documents software platform compatibility, Wiegand support, or enclosure dimensions in a way that distinguishes them. Buyers selecting purely on feature specifications — door count, user capacity, protocol support, and warranty — will find no documented advantage for either unit. The IC-UR48-SPEC's datasheet should be consulted to confirm its voltage requirements before finalizing a power-supply design.
Is the IC-UR48-SPEC or MC-4PAK better for large-scale deployments with many cardholders?
Based on the provided specifications, both controllers are identical in user capacity: each stores up to 250,000 credential profiles on-device. Neither model documents a higher-capacity variant or expandable memory option, so for cardholder volume alone, there is no documented advantage for either unit.
Does either controller require a specific power supply voltage?
Only the MC-4PAK specifies an input voltage — 30VDC — in the provided data. The IC-UR48-SPEC does not include a voltage or power requirement in its supplied specifications. Installers planning power distribution for the IC-UR48-SPEC should consult its full datasheet at the listed path (/content/product-datasheets/IC-UR48-SPEC.pdf) to confirm requirements before procurement.
Do both the IC-UR48-SPEC and MC-4PAK support encrypted reader communication?
Yes. Both units list OSDP (Open Supervised Device Protocol) as a supported communication protocol. OSDP is designed to provide encrypted, bidirectional communication between the controller and connected readers. Neither specification documents OSDP version (e.g., OSDP v2) or AES-128 encryption confirmation explicitly, so buyers with a strict encryption compliance requirement should verify against the respective full datasheets.
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