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XMC20

Full Hybrid Multi-service Access & Transport Platform for Communications Networks in Mission-Critical Systems

XMC20 is a purpose-built multi-service telecommunication family of network elements. It was designed to meet the stringent access & transport networks requirements for Mission-Critical Systems (MCS). XMC20 Mission-Critical Systems (MCS) address industries includes Oil and Gas, Rail and land transport, Air Traffic Management, Public safety, and Police-border control.

Being a full hybrid access and transport platform, the XMC20 supports the co-existence of native TDM and packet-based data transmission in one single network element. Thus, it is capable to fully evolve towards packet-based transport networks (MPLS-TP). With this, our customers have the flexibility to choose the best technology for their mission-critical applications. This lowers the operational costs and enhances the reliability and the availability of services.

The XMC20 provides the same scalability in TDM as well as in packet-based networks for highest availability under any circumstances. Comprehensive QoS functions (Quality of Service) guarantee reliable data transmission. German-produced XMC20 is equipped with numerous redundancy and protection functions for highly available data transmission. It is mechanically robust and can be operated in fanless mode due to its low power consumption and low number of components, providing a very good eco-footprint.

The XMC20 is unique in providing highly secure end-to-end encryption in mission-critical networks, while still maintaining the very high level of data availability required for such infrastructures. State-of-the-art encryption is based on keys generated by a hardware-based quantum random number generator for the highest level of assurance.

Services in XMC20 are administered centrally by the network management system UNEM and local craft terminal ECST. XMC20 can also be managed with the Ericsson ServiceOnAccess (SOA) network management system.

Get to know more

The subrack XMC25 offers 21 slots for cards. It is especially suitable for large access points which is to serve a large number of interfaces.
XMC23 offers the same functions as XMC25 in a more compact subrack of 4 height units.
XMC22 provides 4 slots in a 2-HU subrack for installations where space is very limited.
  • Full hybrid concept for coexistence and interworking of native TDM and packet services within the same node
  • Protection, redundancy and encryption functions for secure data transmission and highest availability
  • Wide range of applications and access interfaces supported
  • Support for various transmission interfaces and protocols, including 10 Gbps, SDH STM-16, MPLS-TP and many others
  • Fanless operation supported, robustness
  • Guaranteed long lifecycles due to state-of-the-art FPGA technologies and own manufacturing plant
  • Wide array of services which include 3rd party equipment integration and maintenance

Functions

TDM Packet Telephony
G.703 2 Mbps Ethernet Chassis Switch SIP Voice Media Gateway
G.703 64 kbps Label Edge Router (LER)  
Ethernet-over-SDH (EoS) Label Switching Router (LSR)  
Ethernet-over-PDH Circuit Emulation over Packet Networks  
Cross-connect (nx 64 kbps,  2 Mbps)    

Subscriber interfaces

Telephony Data DSL
POTS 100BaseFX SHDSL (TDM)
FXO GbE (optical) SHDSL (EFM)1)
E&M 10/100/1000BaseT  
Local Battery Phone STM-1/STM-4/STM-16  
ISDN
(in future release)
G.703 2 Mbps  
  G.703 64 kbps codirectional  
  G.703 64 kbps contradirectional  
  V.24/V.28  
  X.21/V.11  
  V.35  
  RS485 (2-wire, 4-wire)  

Network interfaces

Packet SDH/PDH
1 GbE and 10 GbE, optical STM-1/STM-4/STM-16
GbE, electrical SHDSL (TDM)
SHDSL (EFM)1) n x G.703 2 Mbps
System Features  
System architecture Fully modular open architecture, any service at any slot
  Hybrid backplane for Ethernet and native TDM services
  Fan-less operation supported
  Chassis switching functionality
  MPLS-TP according IETF RFC 5921 (07/2010)
Unit Protection 1:1 equipment protection for core unit, SDH units, various PDH units and media gateway
Network Protection RSTP/MSTP (Rapid Spanning Tree Protocol / Multiple Spanning Tree Protocol)
  Ethernet protection switching
  MSP (Multiplex Section Protection)
  SNCP (Subnetwork Connection Protection)
  1+1 Path-Protection
Synchronisation via Ethernet Synchronous Ethernet according ITU-T G.8262 (SyncE)
  Ethernet Synchronization Messaging Channel according ITU-T G.8264 (SyncE ESMC)
  Precision Time Protocol Version 2 according IEEE 1588-2008 (PTP)
Synchronisation via TDM SETS according ITU-T G.813
  PETS according ITU-T G.823
Switching capacity up to 62 Gbps (XMC25)
TDM cross-connect capacity 128 x 2 Mbps
Ethernet backplane capacity 400 Gbps
Operation & Maintenance Ethernet OAM according ITU-T Y.1731 1)
VLAN Bridge Functionality  
VLAN Support According IEEE 802.1Q (port- und tag-based)
No. of VLANs 4089
VLAN Ether Type 0x8100 (Single Tagged Frames)
  0x8100 (Q-in-Q Frames)
Traffic prioritisation CoS Handling according IEEE 802.1 Q
Traffic classification Based on:
  - Port (port default priority)
  - Ethernet priority bits
  - IP DSCP -field
Security Ingress Storm Control
Protection Ethernet Ring Protection Switching (ERPS) according ITU-T G.8032v2 (03/2010)
Authentication According IEEE 802.1X
MPLS-TP Functionality  
MPLS-TP implementation According IETF RFC 5921 (07/2010)
Attachment Circuits (AC) On core unit and on service units
MPLS-TP ports On core unit
Node function Label Edge Router (LER)
  Label Switching Router (LSR)
MPLS-TP services MPLS-TP Transport
  Virtual Private Wire Service (VPWS)
  Virtual Private LAN Service (VPLS) 1)
OAM-functions Continuity Check (CC)
  Remote Defect Indication (RDI)
Protection 1:1 Bidirectional Protection Switching (revertive, nonrevertive)
Gateways  
TDMoIP gateway SAToP according IETF RFC 4553
  CESoPSN according IETF RFC 5086 1)
Ethernet over SDH gateway Framing-Procedure GFP according to ITU-T G.7041
  Virtual Concatenation according to ITU-T G.783
  Link Capacity Adjustment (LCAS) according to ITU-T G.7042
Ethernet over PDH gateway PPP-, Multi-Link-PPP- and HDLC-termination
VoIP media gateways SIP
Interfaces – Uplink, Cascading, Management  
1 or 10 Gigabit Ethernet 2 x optical SFP+ based and 3 x electrical
SDH 2 x STM-16/4, 2 x STM-4/1, 4 x 100/1000BaseT per SDH-unit
Management 10/100BaseT for local configuration
  10/100/1000BaseT for central management
Interfaces – User Side Ports per Card
Ethernet (optical/electrical, SFP-based) 12
Ethernet (electrical with PoE+) 12
Ethernet (electrical, high density) 24
SHDSL (EFM) 1) 24
SHDSL (TDM) 8
POTS 64
POTS (with enhanced voltage protection) 16
FXO (exchange line interface) 12
E&M 8
Local Battery Phone 8
Serial data interfaces
(V.24/V.28, X.21/V.11, V.35, RS485)
4
2 Mbps/E1 (G.703) 8
2 Mbps/E1 (G.703) over SDH 48
64 kbps (G.703) codirectional 8
64 kbps (G.703) contradirectional 2
Capacity XMC25 XMC23 XMC22
Number of slots 21 8 4
Bandlot 1 and 10 Gbps protected (1:1) backplane access 1 and 10 Gbps protected (1:1) backplane access 1 Gbps
Slot 20,32 mm 20,32 mm 20,32 mm
Dimensions (W x H x D) and Weights XMC25 XMC23 XMC22
19" subrack with front cover and cable tray 482,6 x 309,5 x
304,3 mm,
7,7 kg
482,6 x 176,1 x
303,3 mm,
5,3 kg
482,6 x 94,9 x
303,3 mm,
3,6 kg
Installation 19" and ETSI mounting practice 19" and ETSI mounting practice 19" and ETSI mounting practice
EMC, Safety and Powering  
Product family standard EN 300 386 V1.3.2
  ETSI ES 201 468 V1.3.1 - testlevel 2
  EN 55022
  ITU-T K.21
  ITU-T K.45
  EN 50121-4 (EMC Railway applications)
Safety IEC/EN 60950-1
Input voltage nominal (min/max) -48/-60 V DC (39,5 V DC ... 72 V DC)
Operation Environment  
Temperature range system (extended) -25 °C ... +60 °C according ETSI EN 300 019-1-3, class 3.3, extended
Humidity According ETSI EN 300 019-1-3,  class 3.2, up to 95 %, non-condensing

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