The KEYMILE BFDBU 101 102/1 (hardware revision R2A) is the basic subrack (chassis) for the UMUX 1200 R2 multi-service access platform, as listed in Keymile's official UMUX & UCST R8B Release Note. It is supplied as part of the UMUX 1200 R2 Core Unit package (KEYMILE PEC 11/ZFEBU 120 106 R2A for DC powering, or 11/ZFEBU 120 109 R2A for AC powering), and includes the subrack's front cover and packing materials. The UMUX 1200 subrack is designed for horizontal 19-inch rack installation and houses the control unit, power unit(s), and traffic/interface cards that make up a complete UMUX 1200 network element. UMUX is a carrier-grade multiplexer platform used by dedicated network operators such as utilities, railways, and airports. Keymile was acquired by ABB in 2017 and the UMUX range was later discontinued; this subrack is now sourced mainly as a refurbished or pulled spare part.
Key Features:
- Basic subrack/chassis for the UMUX 1200 R2 system core
- Designed for horizontal 19-inch rack installation
- Includes front cover and packing materials
- Compatible with both DC-powered and AC-powered UMUX 1200 R2 core unit configurations
- Houses control units (COBUX/COBUV), power units (POSUM/POSUA), and traffic cards
Technical Specifications:
- Manufacturer Part Number: BFDBU 101 102/1
- Hardware Revision: R2A
- Manufacturer: KEYMILE AG, Bern-Liebefeld, Switzerland
- Platform Compatibility: UMUX 1200 (R2 core)
- Associated Core Unit PEC: 11/ZFEBU 120 106 R2A (DC) / 11/ZFEBU 120 109 R2A (AC)
- Form Factor: 19-inch horizontal rack-mount subrack
- Included Items: Front cover, packing materials
- Related Accessories: 19-inch installation set (cable tray) COZBU 102 209/1 R2A, FANU2 fan unit, TSRBU 101 191/3 DC power cable
- Note: Detailed mechanical dimensions (height in rack units, depth, weight) were not found in a standalone public datasheet — recommend verifying with Keymile/DZS legacy documentation before publishing precise physical specs.
