Loop O9400S SDH/ SONET, STM-1/4, OC-3/12
Integrated Services Access Multiplexer

Loop O9400S SDH/ SONET, STM-1/4, OC-3/12, Access Multiplexer

  • 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
  • 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


How to Order
Panel Illustrations
Application Drawings
Detailed Printable Data Sheet

One Typical Application, Click to Enlarge


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

General Specifications

For detailed information on the many interface cards and configurations available for this product, please click here to download the 11 page printable data sheet.

Max. Number of Tributary Modules (For 1u shelf)

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

System Clock

CLock Source: Internal clock, 2 aggregate lines clocks (East STM-1/4 (OC-3/12)), 3 tributary clocks, 1 external input and output clock (ITU-T G.703 - 2.048 Mhz or E1 for STM-1/4, T1 for OC-3/12)

Management Interface

LEDs, Console Port, Telnet, SNMP, Inband interface using 1 E1 Interface, Outband interface using DCC channel, user slectetable 3,9, or 12 channels

Alarm Input/Output

4 Input Ports, 4 output ports Relay I/O


Loopbacks, Direction to optical ines, to tributary lines. BERT test, T1 /E1 interface; direction to optical lines, to tributary lines

Performance Monitor

Detailed Performance Reports, Detailed Alarm History, and Alarm Queue


AC and DC coexistent module 90 to 240Vac, 50/60Hz, -48Vdc (-36 to -72Vdc)
DC module -48Vdc (-36 to -72Vdc)
Power Consumption 18.9 watts

Physical and Environmental

Dimension for 1U: 432mm x 44mm x 240 mm (W/H/D)
Temperature 0-50C
Desk-top stackable, 19 inch rack mountable, wall mountable


EN55022 Class A, EN50024
FCC Part 15 Class A
IEC60950-1EN 60-950-1

Standards Compliance


G.664, G.707, G.7042, G.775, G.783, G.806, G.823, G.747, X.86


T1.105, T1.107


802.1q (VLAN), 802.1w (RSTP), 802.1s(MSTP), 802.1ad (stack VLAN),
802.3x (flow control), 802.1p (QoS)

Typical Front Panel

Application Illustration

Ordering Information

Pricing: The price point of this versatile product is surprisingly low. Please call our toll free number: 800-432-2638 for pricing and additional ordering information.

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