1.Overview

ZCC-1500 is a Gigabit Ethernet over TDM aggregation gateway that interconnects packet networks via PDH access. It provides three gigabit Ethernet interfaces and 2 STM-1 interfaces. ZCC-1500 is designed as a modular system, with one 16 VCG Ethernet aggregation module embedded in the main board, three 16 VCG Ethernet aggregation modules pluggable, and various optional power cards to meet the various application requirements. ZCC-1500 typically deployed at a central location, It aggregates user Ethernet traffic received from remote devices (such as ZCC-100, ZCC-101, ZCC-110, ZCC-110L), thus completing a full access solution from the service provider’s central site to the customer premises. ZCC-1500 can be used in the traffic convergent network, supports point-to-multipoint application. Other typical applications include:

• IP DSLAM and IP base station traffic backhauling.
• WiMAX BTS traffic backhauling.
• Ethernet private line/LAN services.
• Backhauling of network management traffic.
• Aggregation of Ethernet traffic over PDH wireless links.

2.Feature

• STM-1 interface：
• Number of ports: 2 (1+1 APS or 1+0);
• Date rate：155.520Mbit/s;
• Connector: SFP slot, Hot pluggable, Optical or Electrical Optional;
• Clock: Internal timing or STM-1 line timing.
• Operating Mode:
• 1+1 APS (63E1).
• 1+0 (126E1).
• Recovering time: <50ms.
• Supports ALS (Automatic Leaser Shutdown).
• Supports RPD (Remote Power down Detection).
• Compliance: ITU-T G.957, G.841, G.813, G.707,G.825.
• Gigabit Ethernet interface：
• Number of ports: 3.
• Combinations:
• 2 electrical Gigabit Ethernet (GE).
• 1 optical Gigabit Ethernet (GX).
• Connector:
• RJ-45 for electrical (1000BaseTx).
• SFP for optical (1000BaseSx or 1000BaseLx).
• Date rate:
• Optical 1000 Mbps.
• Electrical 10/100/1000Mbps.
• Max Frame Size: 1552 bytes.
• Min Frame Size: 64 bytes.
• Compliance: Relevant sections of IEEE 802.3 and IEEE802.3u.
• VCG: up to 64 remote sites.
• Supports unicast multicast and broadcast frame.
• MAC address table: 4K.
• MAC aging time: 15/300 seconds.
• MAC address dynamic learning.
• VLAN: IEEE 802.1Q tag-based VLAN, port-based VLAN.
• QinQ: Supports QinQ (Double Tag 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 link aggregation function.
• NE Management：
• CLI: Local management is performed via an CLI terminal.
• SNMP: Compatible with V1 and V2C protocol. Access is available using SNMP management software "Smartview".
• LED indication: Necessary alarm indications such as NOP, LOF, RPD.
• Download online: Supports FTP protocol and firmware download online without disturbance of existing traffic.
• EoPDH encapsulation
• GFP: For single and multi-E1 E1 mode
• 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.
• HDLC: For single E1 mode
• HDLC encapsulation compliant to RJ017.
• Supports Unframed and Framed (PCM31).

• Diagnostics

• Supports E1 loopback and the embedded E1 BERT (Bit Error Ratio Tester) testing function.
• Supports Ethernet loop back detection for each channel. If loopback event is detected, the channel can be configured to be blocked to prevent from broadcast storm.

• 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.
• The differential delay between any two of the 16 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: 25W(±10％)
• Support Redundancy Power Supply Protection.
• Physical：
• Height: 43.7 mm (1U).
• Width: 434 mm (19 in).
• Depth: 255 mm.
• Weight: 3.5 Kg.
• Operating environment：
• Temperature: -5~55-deg centigrade.
• Storage Temperature: -40~70-deg centigrade.
• Relative Humidity: <95% non-condensing.
• Remote Site Family Product Table

4.Application

In the application, the Ethernet service of each remote user can be carried by different VCG channels, each VCG can be assigned to 1~16 E1 flexibility and the total bandwidth of the 64 VCG channels cannot be exceeds 126E1s.

As shown in Figure1-4-1, with EoPDH and VLAN technology, the remote Ethernet service can be transmitted and converged into the service center (Switch) by ZCC-1500(point-to-multipoint); ZCC-1500 support OAM management frame-based E1 channel, by OAM frame, all remote devices can be configured and monitored.

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

5.Order Information

ZCC-1500AD : 64VCG Gigabit Ethernet over STM-1 Convergent Converter, 2GE+1GX Gigabit Ethernet interfaces, 2XSTM-1 intefaces, SNMP Managed, 1U 19”Size Rackable Unit, 220VAC+-48DC Dual Power Supply Redundancy