32 FXS ports use RJ45 front-panel wiring for branch offices and smaller analog rooms.
UScale IAD Series
High-density analog voice access gateways for 32, 96, and 224 FXS-port rollouts, built for SIP/VoIP interop, branch access, and staged analog-to-IP migration.

Choose the right UScale IAD density for analog access.
S132 provides 32 FXS ports with RJ45 cabling and supports Bridge or Router mode, making it the flexible entry model for branch access and smaller analog voice migrations.
- Maximum FXS Ports
- 32
- Physical Interface Type
- RJ45
- Network Interfaces
- 1 WAN, 3 LAN
- Operating Mode
- Bridge / Router
- Maximum Line Distance
- 3 km
- Power Consumption
- 52 W
Confirm cabling, access ports, and network mode before choosing a chassis.
UScale IAD selection depends on more than FXS density. Confirm the analog connector, service uplink, maintenance access, and Bridge or Router mode before planning wiring rooms, SIP access, and remote operations.
DB68B connectors support higher-density analog cabling for 96-port and 224-port deployments.
RJ45 RS232 console access supports local commissioning, recovery, and fault diagnosis when network access is unavailable.
S132 uses WAN/LAN ports differently by mode. S196 and S1224 use FE1/FE2 as WAN/MGT service uplinks, with LAN reserved for maintenance access.
Confirm AC or DC input and redundancy requirements during quotation; source documents list dual AC input support for S132 and S1224.
Match UScale IAD models to port density.
Use the model cards to select the FXS density and access mode before opening the detailed comparison matrix.

UScale IAD S132
Branch Analog Entry
Use S132 when the site needs 32 FXS ports plus the flexibility of Bridge or Router mode for branch access.
- Port density32 FXS ports for focused branch, office, or small campus analog access.
- Network modeSupports Bridge mode for direct access and Router mode for WAN/LAN branch deployment.
- Best fitSmall and midsize sites that need fast analog endpoint migration into SIP infrastructure.

UScale IAD S196
Mid-Density Access
Use S196 when the project needs 96 FXS ports and DB68B cabling for larger endpoint groups.
- Port density96 FXS ports for medium call-center, campus, and multi-floor access projects.
- Network modeBridge-mode deployment for SIP/IMS access with separated maintenance network planning.
- Best fitSites that need higher analog density while keeping a single managed IAD platform.

UScale IAD S1224
High-Density Aggregation
Use S1224 when the deployment needs 224 FXS ports for large analog access pools.
- Port density224 FXS ports for large analog pools, operator access, and high-density campus rollouts.
- Network modeBridge-mode access with FE uplink and maintenance-network separation.
- Best fitLarge deployments where analog endpoint density and centralized SIP registration drive selection.
IAD capabilities for high-density analog voice access.
Plan analog endpoints, SIP server registration, bridge or router network mode, and remote operations from the same access gateway family.
High-Density FXS Access
Consolidate analog phones, fax machines, and endpoint lines across 32, 96, and 224 FXS-port models, with long-line planning for campus and factory wiring.
- Map branch, campus, hotel, and operator access sites by endpoint count instead of generic series positioning.
- Keep analog phone, fax, modem, and endpoint-line migration decisions tied to port, REN, and line-reach limits.
- Maximum 224 FXS ports
- Full-port concurrency
SIP And VoIP Interop
Register into SIP servers, IP-PBX platforms, softswitches, and IMS-style access networks while keeping codec, DTMF, echo control, and fax behavior configurable.
- Register with SIP servers, IP-PBX platforms, softswitches, and IMS-style access networks.
- Tune codec, DTMF, echo cancellation, jitter buffer, and fax behavior per deployment.
- SIP v2.0 + RFC3261
- T.38 / G.711 fax
Network Mode Planning
Use Bridge mode for direct SIP access across the family, or S132 Router mode when a branch needs WAN/LAN separation, NAT, and local DHCP service.
- Use Bridge mode for access-layer integration where routing stays upstream.
- Use S132 Router mode when a branch needs WAN/LAN separation, NAT, and local DHCP.
- Bridge mode across the family
- S132 Router mode
Remote Operations
Support rollout and fault isolation with encrypted web access, SSH, SNMP monitoring, logs, configuration backup, firmware upgrade, and packet capture.
- Use encrypted management plus TR-069, TR-181, and TR-369 provisioning paths for carrier rollout and fleet maintenance.
- Collect logs, run packet capture, back up configuration, and upgrade firmware during fault isolation.
- TR-069 / TR-181 / TR-369
- Backup / upgrade / capture
Key features for UScale IAD access deployments.
A compact source-backed feature checklist for density, cabling, network mode, SIP voice, fax, and remote operations.
Access density and cabling
- Maximum 32 / 96 / 224 FXS ports by chassis
- Full-port concurrent calling for busy-hour sizing
- Maximum 3 km FXS line distance
- 2 REN analog endpoint load support
- RJ45 interface on S132
- DB68B high-density cabling on S196 and S1224
- 1 WAN + 3 LAN network interface layout
SIP voice and fax interop
- SIP v2.0 signaling with RFC3261 interop
- UDP, TCP, and TLS transport options
- Primary and backup SIP server registration
- G.711A/U, G.729A, G.722, G.726, and iLBC codecs
- G.168 echo cancellation up to 128 ms
- T.38 and G.711 fax pass-through
- SIP INFO, RFC4733, and In-band DTMF
Network and operations
- Bridge mode across all models
- Router mode on S132 for WAN/LAN branch access
- IPv4/IPv6, VLAN, and QoS support
- TLS, SRTP, HTTPS, and 802.1x security support
- Web/HTTPS, SSH, SNMP v1/v2c, TR-069, TR-181, and TR-369 management
- Configuration backup, firmware upgrade, and packet capture
- Cloud management, API integration, logs, ping, and traceroute
UScale IAD Solution Scenarios
Plan analog access, SIP resiliency, and branch networking with the topology patterns documented for UScale IAD.
SIP/IMS access and network separation
Use this pattern for hotels, campuses, factories, and operator access rooms where analog endpoints stay in place but SIP/RTP traffic moves to an IP voice network. The topology guide documents single-network Bridge access and dual-network separation for SIP/IMS dedicated links plus internal data or management networks.
Compare UScale IAD S132, S196, and S1224 specifications
Source-backed FXS density, interface type, network mode, voice, fax, and physical parameters from the UScale IAD whitepaper and topology guide.
| Specification | UScale IAD S132 | UScale IAD S196 | UScale IAD S1224 |
|---|---|---|---|
| Access Density | |||
| Maximum FXS Ports | 32 | 96 | 224 |
| Physical Interface Type | RJ45 | DB68B | DB68B |
| Supported Analog Endpoints | Analog phones / fax | Analog phones / fax | Analog phones / fax |
| Maximum Line Distance | 3 km | 3 km | 3 km |
| Network And Operations | |||
| Network Interfaces | 1 WAN, 3 LAN | 1 WAN, 3 LAN | 1 WAN, 3 LAN |
| Operating Mode | Bridge / Router | Bridge | Bridge |
| SIP Protocol | SIP v2.0 | SIP v2.0 | SIP v2.0 |
| Remote Management | Web/HTTPS, SSH, SNMP, TR-069, TR-181, TR-369 | Web/HTTPS, SSH, SNMP, TR-069, TR-181, TR-369 | Web/HTTPS, SSH, SNMP, TR-069, TR-181, TR-369 |
| Voice And Fax | |||
| Voice Codecs | G.711A/U, G.729A, G.722, G.726, iLBC | G.711A/U, G.729A, G.722, G.726, iLBC | G.711A/U, G.729A, G.722, G.726, iLBC |
| Echo Cancellation | G.168, 128 ms | G.168, 128 ms | G.168, 128 ms |
| Fax Modes | T.38 / G.711 pass-through | T.38 / G.711 pass-through | T.38 / G.711 pass-through |
| Maximum Fax Rate | 14.4 kbps | 14.4 kbps | 14.4 kbps |
| Physical And Power | |||
| Dimensions | 440 x 44.4 x 318 mm | 440 x 44.4 x 317 mm | 440 x 86 x 317 mm |
| Weight | 2.44 kg | 6 kg | 10 kg |
| Power Consumption | 52 W | 150 W | 250 W |
| Power Input | Maximum dual 100-240V AC or -48 to -60V DC | 100-240V AC or -48 to -60V DC | Maximum dual 100-240V AC or -48 to -60V DC |
Resources for UScale IAD evaluation and rollout.
Move from model selection into detail pages, topology planning, documents, and support paths for final engineering review.
Resources
Document Center
Collect UScale IAD whitepapers, topology references, and deployment documentation.
Products
Model Detail Pages
Review S132, S196, and S1224 detail pages once the FXS density and network mode are clear.
Resources
Topology Planning
Use topology references for Bridge mode, Router mode, SIP redundancy, and VPN branch scenarios.
Support
Ticket Support
Submit topology, interoperability, or rollout questions when the access design needs review.
Size the right UScale IAD for your analog rollout.
Share your FXS port count, network mode, power requirements, and rollout scale with the OpenVox team.





