Comprehensive Functionality
The UMUX platform provides carrier-grade reliable multi-service multiplexing and aggregation functions over copper and fibre networks. A variety of voice (POTS, FSX, FSO, ISDN) and data (e.g. G.703, V.11, V,24, V,35) interfaces, SHDSL and Ethernet (including PoE+ and EoS) services are available.
UMUX module range
The modular and flexible housing provided by the UMUX 1500 (8U, 21-slot) and UMUX 1200 (4U, 8-slot) 19” subracks provide the perfect solution for all applications and locations, offering redundant controller and power supplies.
‘Legacy’ telecoms history
The UMUX SDH product portfolio was originally launched 1991 by Ascom, which subsequently became Keymile.
In 2003, by when 70,000 units had been deployed worldwide, the ‘enhanced’ UMUX multiservice access platform was introduced, offering the delivery of ATM, TDM and IP based services from the same platform, with support for IP/Ethernet, ADSL, VoDSL and G.SHDL.
Keymile was sold to ABB in 2017 when the UMUX range was discontinued, and then was acquired in 2019 by DZS.
Continuing to provide operational service
The UMUX, together with the UNEM network management system and ‘sister’ LINERUNNER and MILEGATE products, continues to provide operational service with various global Operator, Utilities and Transport companies.
@YellowsBestLtd supports requirements to maintain these networks by supplying various spare part items from refurbished and surplus stocks in perfect working order.
There follows a list of the main elements that are typically provided, though other items can be provided. Please let us know of any specific requirements you may have. We look forward to being of assistance.
| Part Code | Unit type | Description |
| A31A1679 | U1500-CS | U1500 Core R2 (DC) for 19″ mounting (incl. Subrack, POSUM, COBUX 128x2Mb/s XC) |
| A30A0205 | DATAS-FU | Data Interface unit. Multi-Interface V.35, V.24/V.28, X.24/V.11, RS485, Ethernet, 4 ports, all options |
| A24A3323 | LOMIF-FU | 2 Mb/s IF (E1), 8 x G.703 Interfaces |
| A24A3651 | COBUX-FU | Control Unit Standard,128x2Mb/s XC |
| A21A2865 | EXLAN342 | POTS FxO Interface Unit, 12 ports, complex impedance |
| A31A7871 | GECOD371 | Data IF 64kb/s G.703 codir., 8 interfaces |
| A24A3338 | LOMI4-FU | 2 Mb/s IF (E1), 4 x G.703 Interfaces |
| A24A7979 | POSUM306 | Power supply unit -48VDC 85W |
| A30A1442 | SUBH3-FU | POTS FxS Interface Unit, 30 ports |
| A31A7873 | SULIS393 | ISDN Interface Unit Subscriber side, ISDN BA 2B1Q, 8 interfaces |
| A23A9927 | SYNAC-FU | SDH Access bridging unit SBUS-PBUS, 8xVC-12; no external IF |
| A24A1989 | TUPON-FU | Optical Trunk Interface 8Mbit/s 1xopt.(o), 4xel.(e), 1550nm, PBUS access |