Cabletron 9E133-36 36-Port 10BASE-T Ethernet Module MMAC+ SmartSwitch 9000 RJ21

Cabletron 9E133-36 36-Port 10BASE-T Ethernet Module MMAC+ SmartSwitch 9000 RJ21

The Cabletron 9E133-36 is a 36-port 10BASE-T Ethernet switching module designed for installation in Cabletron MMAC+ and SmartSwitch 9000 modular chassis. It provides high-density 10 Mbps Ethernet connectivity via RJ21 (Amphenol/Champ 50-pin) connectors, allowing a single module to serve up to 36 workstations or network drops. This unit is hardware revision E1 and was manufactured by Cabletron Systems in the USA.

Specifications & What's Included

• Model: 9E133-36
• Assembly P/N: 9000695-03
• Hardware Revision: Rev E1
• Network Standard: 10BASE-T (IEEE 802.3)
• Port Count: 36 ports
• Connector Type: RJ21 (Amphenol/Champ 50-pin) — 4 connectors on rear bracket, each carrying 9 ports
• Data Rate: 10 Mbps per port
• Compatible Chassis: Cabletron MMAC+ and SmartSwitch 9000
• On-board magnetics: Fil-Mag 78Z4488D-01
• Country of Manufacture: USA (per PCB silkscreen)
• Module only — no cables included

Applications

The Cabletron MMAC+ (Multi Media Access Center Plus) and SmartSwitch 9000 were high-density modular network chassis systems from Cabletron Systems, widely deployed in enterprise LAN environments during the mid-to-late 1990s. These chassis accepted a range of interface modules — Ethernet, Token Ring, FDDI, and ATM — allowing network administrators to build a single, centrally managed wiring-closet or data-center switch from a variety of media types. The 9E133-36 specifically provides 36 RJ21 ports of 10BASE-T, which in typical building wiring connects via 25-pair telco cable to a 110-block or patch panel, fanning out to individual RJ45 drops at workstation outlets. This made it a popular choice for high-density floor wiring in large office buildings and campuses. Today these modules are primarily sought by organizations maintaining legacy Cabletron MMAC+ or SmartSwitch 9000 infrastructure, or by collectors of 1990s enterprise networking equipment.