Skip to product information
1 of 1

Cisco

Cisco SM-D-48FXS-E | 48 FXS (OPX-Lite) | RJ21 Amphenol | SIP/SRST | T.38 Fax | ISR Service Module (Double-wide)

SKU:SM-D-48FXS-E

Regular price POA
POA
POA
Sale Sold out
Taxes included. Shipping calculated at checkout.

Description

48-port FXS OPX-Lite analog service module for routers with a double-wide SM bay. Designed for off-premises extension use cases, providing analog line connectivity integrated with IP telephony via SIP and SRST. RJ21 connectors simplify high-density cabling to distribution frames.

Features

- High-density analog FXS for OPX use cases
- RJ21 cabling for tidy, scalable installations
- SIP interoperability with leading IP telephony platforms
- SRST for branch survivability
- Ideal for analog endpoints, paging, and alarm lines

Warranty

All products sold by XS Network Tech include a 12-month warranty on both new and used items. Our in-house technical team thoroughly tests used hardware prior to sale to ensure enterprise-grade reliability.

All technical data should be verified on the manufacturer data sheets.

View full details
  • You may also like
  • Best sellers
  • Related Products

specs-tabs

Collapsible content

Technical Specifications

Technical Specifications

- Ports: 48x FXS (OPX-Lite) via 2x RJ21 50-pin connectors (24 ports per RJ21)
- Form factor: Double-wide Service Module (SM)
- Compatibility: Requires router chassis with double-wide SM bay (select ISR platforms)
- OPX-Lite: optimized for off-premises extension applications (limited loop current/ring power vs standard FXS)
- Call control: SIP to CUCM/ITSP; SRST for survivability
- Fax: T.38 and passthrough
- Codecs: G.711 a/u, G.729a/b
- Wiring: RJ21 to 110/66 blocks or patch panels

Recently Viewed

  • Request for a Quote

    Looking for competitive pricing? Submit a request, and our team will provide a tailored quote that fits your needs.

  • Contact Us Directly

    Have a question or need immediate assistance? Call us for expert advice and real-time support.

    Call us Now  
  • Contact Us Directly

    Have a question or need immediate assistance? Call us for expert advice and real-time support.

    Contact us