1.Overview

ZCC-1104 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 (via adapter cable).
• Clock:
• Internal timing.
• Tracing E1 line timing.
• The source of tracing E1 line can be switched according to the signal quality.
• Compliance:ITU-T G.703, G.704, G.823.
• Ethernet interface：
• Number of ports: 4.
• Combinations:
• 4 electrical  Ethernet (FE).
• 3 electrical Ethernet (FE)+1 optical Ethernet (FX).
• Connector:
• RJ-45 for electrical (100BaseTx).
• SC of FC for optical (100BaseFx).
• Date rate:
• Optical 100 Mbps.
• Electrical 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 aging time: 15/300 seconds.
• MAC address dynamic learning.
• VLAN: IEEE 802.1Q tag-based VLAN, port-based VLAN.
• Provides performance statistic for each Ethernet port, such as error packets.
• Supports PAUSE flow control.
• Supports broadcast storm filtering control.
• Perfect Ethernet loop processing.
• Supports VLAN priority, and per port priority schemes enable users to define seven QoS levels according to application requirements.
• Supports auto-MDI/MDIX function.
• Bandwidth is increased without damaging the Ethernet data.
  
• NE Management：
• CLI and TELNET: Local management is performed via an CLI or TELNET terminal.
• SNMP: Compatible with V1 and V2C protocol. Access is available using SNMP management software "Smartview".
• LED indication: Necessary alarm indications such as LOS, LOF, AIS.
• Download online: Supports FTP protocol and firmware download online without disturbance of existing traffic.
• 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.
• Diagnostics
• Supports E1 loopback and the embedded E1 BERT (Bit Error Ratio Tester) testing function.
• Supports E1 loopback detection: when some E1 signal is detected as looped back, it will be not employed for carrying payload temporarily, and when the loopback is broken, this E1 will resume to be used..

• 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: 210 mm.
• Weight: 3.0 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-1104 system, the Ethernet is transferred by 4E1. ZCC-1104 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-1104BAD : 4X10/100M Ethernet over 4E1 Converter, 4E1 120Ω intefaces, SNMP Managed, 1U 19”Size Rackable Unit, 220VAC+-48DC Dual Power Supply Redundancy

ZCC-1104UAD : 4X10/100M Ethernet over 4E1 Converter, 4E1 75Ω intefaces, SNMP Managed, 1U 19”Size Rackable Unit, 220VAC+-48DC Dual Power Supply Redundancy