Allied Telesis AT-XEM2-8XSTM-B01 – 8-Port Mixed SFP+ 10GBase-T Expansion Module 1-Year NCP

Product Overview

The Allied Telesis XEM2-8XSTm (AT-XEM2-8XSTM-B01) is an expansion module—not a standalone switch—designed to install into the single XEM2 bay of a compatible x950-28XSQ or x950-28XTQm chassis. It adds 4 x 1G/10G SFP+ fiber ports alongside 4 x 100M/1/2.5/5/10G 10GBase-T copper ports, delivering mixed-media connectivity in a single module slot. The -B01 suffix includes a 1-year Net Cover Premium support bundle. This module cannot operate without an x950-28 series host switch; it is hardware-identical to the AT-XEM2-8XSTM-B05, which differs only in providing 5 years of support instead of 1.

Product Description

The Allied Telesis XEM2 expansion module 8-port mixed SFP+ 10GBase-T with 1-year NCP provides the identical hardware platform as the -B05 variant, offering both fiber and copper 10G expansion in the x950-28 series XEM2 bay with a shorter initial support commitment. The four SFP/SFP+ ports accept standard 1G SFP or 10G SFP+ transceivers, enabling long-distance fiber uplinks to distribution switches, storage arrays, or cross-connect panels at distances beyond copper's 100-meter limit. The four RJ-45 10GBase-T ports auto-negotiate from 100M through 10G over Cat6A cabling, connecting copper-only servers, NAS, or aggregation switches without additional media converters. The -B01 SKU is the appropriate choice when support is managed annually, when procurement systems require separate support renewals, or when the module is being added to an existing Net Cover contract already covering the x950 chassis. Annual renewal aligns the module's support contract to an existing unified support renewal cycle. Like the -B05, the XEM2-8XSTm installs tool-free into the x950-28 XEM2 bay and adds approximately 18.6W to chassis power consumption. The module's mixed-media architecture sets it apart from single-type alternatives: XEM2-12XTm (12x copper only), XEM2-12XS v2 (12x SFP+ only), and XEM2-4QS (4x 40G only). Available from Creation Networks at creationnetworks.net.

Key Features

• 4 x 1G/10G SFP/SFP+ Ports — Accepts standard SFP (1G) and SFP+ (10G) transceivers for long-distance fiber connectivity to backbone switches, storage, or WAN handoffs.
• 4 x 100M/1/2.5/5/10G 10GBase-T Ports (RJ-45) — Full multi-gigabit auto-negotiation over Cat6A for direct copper server or device connections up to 100 meters.
• Mixed-Media in One Slot — Simultaneously provides fiber and copper connectivity without consuming two bays or adding external media converters.
• Compatible with x950-28XSQ and x950-28XTQm — Requires a compatible x950-28 series host chassis with an available XEM2 bay; not compatible with x950-52 models.
• 1-Year Net Cover Premium (-B01) — Includes software maintenance, advance hardware replacement, and 24/7 helpdesk for 1 year. Identical hardware to AT-XEM2-8XSTM-B05 (5-year coverage).
• Tool-Free Installation — Hot-insert capable into the x950-28 XEM2 bay; no scheduled downtime required for module installation.
• Compact Module Form Factor — 130 x 166 x 40 mm; 0.70 kg unpackaged weight.

Typical Applications

• Expanding x950-28XTQm or x950-28XSQ core switches with simultaneous fiber uplinks and copper server ports
• Data center top-of-rack configurations needing both 10G SFP+ storage fabric links and 10GBase-T server connections in one expansion slot
• Enterprise deployments where annual support renewal is preferred over multi-year prepayment
• Phased network upgrades where some devices use SFP+ optics and others rely on existing copper Cat6A runs

Technical Specifications

Frequently Asked Questions

Q: Is this a standalone switch or an expansion module?

The AT-XEM2-8XSTM-B01 is an expansion module only. It must be installed into the XEM2 bay of a compatible x950-28XSQ or x950-28XTQm switch. It has no management interface or power supply of its own and cannot operate independently.

Q: Which x950 models support this module?

Only the x950-28XSQ and x950-28XTQm have the single XEM2 expansion bay. The x950-52XSQ and x950-52XTQm do not have an XEM bay and cannot accept any XEM2 module.

Q: What is the difference between AT-XEM2-8XSTM-B01 and AT-XEM2-8XSTM-B05?

The hardware is identical. The -B01 includes 1 year of Net Cover Premium support; the -B05 includes 5 years. Choose -B01 if support is managed on an annual renewal cycle or if the module will be added to an existing multi-year chassis support contract.

Q: How does the XEM2-8XSTm differ from XEM2-12XTm and XEM2-12XS v2?

The XEM2-8XSTm provides mixed connectivity: 4 x SFP+ (fiber) and 4 x 10GBase-T (copper). The XEM2-12XTm provides 12 x 10GBase-T copper ports only. The XEM2-12XS v2 provides 12 x SFP+ fiber ports only. Choose XEM2-8XSTm when you need both media types simultaneously from a single slot.

Q: Can I use standard 1G SFP transceivers in the SFP+ ports?

Yes. The 4 x SFP+ ports are backward-compatible with standard 1G SFP transceivers, allowing mixed 1G and 10G fiber connectivity in the same module.

Q: What cabling is required for the 10GBase-T ports?

IEEE 802.3an 10GBase-T operates at 10G over Cat6A cabling up to 100 meters. Cat6 is supported at approximately 55 meters for 10G operation. Cat5e is not recommended for 10G link speeds.

Q: Where can I purchase the AT-XEM2-8XSTM-B01?

Creation Networks stocks Allied Telesis expansion modules and can bundle module orders with x950 chassis configurations. Visit creationnetworks.net for pricing and availability.