1.Overview

ZCC-110L4 is a Network Termination Unit connecting Fast Ethernet LANs over 4 E1 circuit. The device enables service providers to supply high-capacity Ethernet services to remote locations, and transparent connection of corporate LANs over existing E1 lines. The device can be used in point-to-point or in point-to-multipoint topology work together with Central unit ZCC-1200N/ZCC-1500. The device uses GFP encapsulation to map the Ethernet traffic over E1. Typical applications include:

• Ethernet private Line / LAN services.
• IP DSLAMs, Cellular IP, and WiMAX base station back-hauling.
• Inter-office or Enterprise LAN connectivity.

2.Feature

• E1 interface：
• Number of ports: 4.
• Date rate：2.048Mbit/s.
• Line code: HDB3.
• Line Impedance:
• 120Ω, balanced.
• 75Ω, unbalanced.
• Connector:
• RJ-45, balanced.
• BNC, unbalanced.
• Compliance:ITU-T G.703, G.704, G.823.
• Ethernet interface：
• Number of ports: 4.
• Combinations: 4 electrical  Ethernet (FE).
• Connector: RJ-45 for electrical (100BaseTx).
• Date rate: 10/100Mbps.
• Max Frame Size: 1916 bytes.
• Min Frame Size: 64 bytes.
• Compliance: Relevant sections of IEEE 802.3 and IEEE802.3u.
• Supports unicast multicast and broadcast frame.
• MAC address table: 1024.
• MAC address dynamic learning.
• Provides performance statistic for each Ethernet port, such as error packets.
• Supports PAUSE flow control.
• Supports auto-MDI/MDIX function.
• NE Management：
• CLI: Local management is performed via an CLI terminal.
• LED indication: Necessary alarm indications such as LOS, LOF, AIS.
• EoPDH encapsulation
• GFP-F encapsulation compliant to G.7041.
• Ethernet to single E1 mapping recommendation ITU-T G.8040.
• Ethernet to nxE1 mapping recommendation ITU-T G.7043.
• Virtual concatenation (VCAT) and Link Capacit Adjustment Scheme (LCAS) recommendation ITU-T G.7042.

• Others:

• The E1s in the local and remote sides can be arranged arbitrarily, such as, the remote E1 port 1 can communicate with local E1 port 3.
• Supports bandwidth unbalanced usage – when some E1s cannot work properly (i.e. the bandwidth of the sending and receiving can be 5E1 and 3E1 respectively).
  
• The differential delay between any two of the 4 E1 can be up to 220ms.

3.Technical Specification

• Power supply：
• AC+DC dual input optional.
• AC range: 85～264V AC
• DC range : -36V ～-72V DC
• Power consumption: 10W(±10％)
• Physical：
• Height: 43.7 mm (1U).
• Width: 434 mm (19 in).
• Depth: 155 mm.
• Weight: 2.5 Kg.
• Operating environment：
• Temperature: -5~55-deg centigrade.
• Storage Temperature: -40~70-deg centigrade.
• Relative Humidity: <95% non-condensing.

4.Application

Figure 1-4-1 illustrates a typical application (point-to-point). With ZCC-110L4 system, the Ethernet is transferred by 4 E1. ZCC-110L4 support OAM management frame-based E1 channel, by OAM frame, remote devices can be configured and monitored.

Figure.1-4-1 Point-to-Point Application

As shown in Figure.1-4-2, with EoPDH and VLAN technology, the remote Ethernet service can be transmitted and converged into the service center (Switch) by ZCC-1200N/ZCC-1500(point-to-multipoint). All devices support OAM management frame-based E1 channel, by OAM frame, all remote devices can be configured and monitored.

Figure.1-4-2 Point-to-Multi-Point Application

5.Order Information

ZCC-110L4BAD : 4X10/100M Ethernet over 4E1 Converter, 4E1 120Ω intefaces, CLI Managed, 1U 19”Size Rackable Unit, 220VAC+-48DC Dual Power Supply Redundancy

ZCC-110L4UAD : 4X10/100M Ethernet over 4E1 Converter, 4E1 75Ω intefaces, SNMP Managed, 1U 19”Size Rackable Unit, 220VAC+-48DC Dual Power Supply Redundancy