The KEYMILE ROFBU 367 120/1 (hardware revision R1C) is a plug-in card identified by the functional designation SYNUF, used within the Keymile UMUX multi-service access and transport platform. Based on its naming convention (SYN- prefix, shared with other synchronization/timing-related UMUX units such as SYNAC, SYNAD, SYNIO, and SYN4E), SYNUF belongs to the SYN-series family of synchronization/timing interface units within the UMUX system core, responsible for clock distribution and network synchronization functions. This part has also been listed under the ABB brand in some reseller listings, reflecting ABB's 2017 acquisition of Keymile. 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 card is now sourced mainly as a refurbished or pulled spare part.
Key Features:
- One-slot plug-in unit for UMUX subracks
- Functional designation SYNUF — part of the SYN-series synchronization/timing unit family
- Cross-branded: listed under both Keymile and ABB
- Managed via Keymile UCST/UNEM network management tools
Technical Specifications:
- Manufacturer Part Number: ROFBU 367 120/1
- Hardware Revision: R1C
- Manufacturer ID: 100989
- Functional Unit Type: SYNUF
- Manufacturer: KEYMILE AG, Bern-Liebefeld, Switzerland
- Platform Compatibility: UMUX
- Form Factor: Single mechanical slot, standard UMUX plug-in unit
- Weight (per reseller listing): 2.00 LBS
- Note: Exact port count and electrical/signal specification for SYNUF were not found in a standalone public datasheet — its function family (synchronization/timing) is inferred from naming convention and card family context; recommend verifying exact function with Keymile/DZS legacy documentation before publishing precise technical claims.
