Technical Data and Features

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)

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
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)
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
Bandwidth per slot 1 and 10 Gbps protected (1:1) backplane access 1 and 10 Gbps protected (1:1) backplane access 1 Gbps
Slot width 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

1) Available with next release