Or call us on

The Loop-O9400S ADM/TM is a compact, economic STM1/4 (OC-3/12) ADM & TM multiplexer designed to add and drop up to

1US1 shelf STM-1 (OC-3)

  • 48 E1/T1 tributaries
  • 2 GbE tributaries
  • 8 FE tributaries

1US4 shelf STM-1/4 (OC-3/12)

  • 48 E1/T1 tributaries
  • 6 E3/T3 tributaries
  • 2 GbE tributaries
  • 8 FE tributaries

With up to two aggregate STM-1/4 (OC-3/12) interfaces, the Loop-O9400S can offer the service provider a versatile protection scheme including SNCP and MSP (1+1) protection for both ring and linear network topology.

All interfaces are fully compliant with the relevant ETSI standards and ITU recommendations. The Loop-O9400S provides powerful OAM&P (Operation, Administration, Maintenance and Provisioning) functionality, including fault management, performance monitoring, configuration management, and network security management. Through the console port, LAN port, Inband E1 and DCC channel, the OAM&P can be achieved both locally and remotely via SNMP or menu-driven interfaces.

The Loop-O9400S provides a complete set of operation interfaces that are consistent with the Telecommunication Management Network (TMN) concept (ITU Recommendation M.30, G.784) for SDH/SONET Network Element/Operations System (NE/OS), NE/NE, and NE/Craft communications. Users can easily operate the Loop-O9400S both locally or remotely for centralized management.

Data Sheet


  • 1U height, full front access (ETSI) unit 1US1 shelf STM-1 (OC-3)
  • 1US4 shelf STM-1/4 (OC-3/12)
  • Rack mount, wall mount, or standalone
  • Aggregate Lines STM-1 (OC-3) software configurable
  • STM-1/4 (OC-3/12) software configurable
  • Two hot-swappable aggregate lines
  • On-board tributaries on TG1 slot Up to 16 E1 (120 ohm)/T1
  • Up to 16 E1 (75 ohm)
  • Fixed tributary modules on TG2 and TG3 slots Up to two 16 E1 (120 ohm)/T1 tributary modules
  • Up to two 16E1 (75 ohm) tributary modules
  • Up to six E3/T3 tributary modules (for 1US4 only)
  • Up to one 1 GbE and 3 FE EoS module with L2 switch (for 1US4 only)
  • Up to two 1 GbE or 4 FE EoS module without L2 switch
  • Power Modules Two hot-swappable DC plug-in modules (-36 to -75 Vdc)
  • Single AC plug-in module (90 to 240 Vac)
  • AC and DC (coexistent) fixed module (90 to 240 Vac / -36 to -75Vdc)
  • Two RS232 Asynchronous
  • Networking Protection SNCP protection
  • MSP (1+1) protection for TM
  • TM, ADM, cross-connect
  • VC11/VC12/VC3/VC4 cross-connect
  • External/Internal/Line timing with SSM
  • Supports VCAT, LAPS, GFP, BCP, LCAS, and non-LCAS
  • Supports jumbo frame note 1
  • Performance monitoring
  • Alarm suppression, masking, and reporting
  • Ethernet Order Wire (EOW) using VoIP technology
  • Management: Console Port, VT-100 menu-driven; SNMP Port
  • Centralized management with Loop’s EMS/iNMS over DCC channel
  • LoopView GUI EMS (Element Management System)
  • Loop iNMS* with full FCAPS and end-to-end circuit management
  • Telnet support
  • SSH
  • RoHS compliant

Where to Find Us

Our Partners Include

virgin airbus
gas international gas international

Request a Callback