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NCT240
User Manual
38 pgs2.45 Mb0

NetComm NCT240 User Manual

Installation Guide
NCT240
IP DSLAM
NetComm NCT240 Installation Guide Release 1.0
Table of Content
1. INTRODUCTION................................................................................................................................3
2. SYSTEM APPLICA TION (UPDATE PICTURE!!!)......................................................................... 5
3. SYSTEM REQUIREMENT................................................................................................................ 6
4. INSTALLATION PROCEDURE........................................................................................................ 9
5. TROUBLESHOOTING..................................................................................................................... 23
6. CABLE AND PIN ASSIGNMENT.................................................................................................... 28
7. OBTAINING TECHNICAL ASSIST ANCE..................................................................................... 32
8. SPECIFICATION............................................................................................................................... 33
9. GLOSSARY........................................................................................................................................ 35
NetComm NCT240 Installation Guide Release 1.0
1. Introduction
This document is intended for First Office Acceptance test plan for NetComm’s ADSL2+ Broadband Access Switch solution (BAS). The Netcomm NCT240 Broadband Access Switch
contains 24 ADSL2/2+ circuits to deliver high-speed data, video and voice service over traditional twisted copper pairs by using DSL technology.
To meet the increasing demand for high-speed internet access and triple play application services. The next generation network offers a feasible functionality of integrated ser vices with the most cost effective architecture. Next generation broadband access networks are designed to provide rich video contents, DSL, POTS and VoIP services over traditional copper wire infrastructure. These types of services will be supported on NGN architecture simultaneously. DSL is used as the data service platform for traditional POTS technology which is used for voice services. The multimedia and local content-rich applications can also be easily implemented on this NGN architecture.
xDSL (Digital Subscriber Line) is a technology for delivering high-bandwidth information over copper telephone lines. xDSL service can deliver POTS and high date rate services simultaneously over a single twisted-wire pair. The POTS and data service are simultaneous and independent; the xDSL data service does not affect the POTS service. xDSL uses the bandwidth above the 4-kHz POTS frequency to transmit duplex data using digital modulation techniques from the C.O side to the Customer Premises Equipment (CPE).
ADSL is a form of xDSL service that delivers an asymmetric data rate over a twisted copper pair. ADSL delivers a higher rate downstream, towards the customer premises and lower rate upstream, from the customer premises. ITU standard compliant Full-Rate ADSL2+ can deliver data rates up to 25 Mbps downstream and 1 Mbps upstream; Full-Rate ADSL can deliver data rates up to 8 Mbps downstream and 800 kbps upstream; G.Lite ADSL can deliver up to 1.5 Mbps downstream and 512 kbps upstream. The actual data rate depends on the length, gauge, and condition of the twisted-wire pair, the bandwidth of the uplink depends on the data network, and the capacity of the network service provider.
Digital Subscriber Line (DSL) dominates broadband market. The position of national telecom operators in most countries has given the advantage in reaching out to customers with broadband services over DSL.
The NCT240 Access system contains 24 ADSL2/2+ circuits to deliver high-speed data service over twisted copper pairs using industry standard Discrete Multi-Tone (DMT) line coding technology. The NCT240 complies with full-rate ADSL in accordance with ANSI T1.413 Issue 2, ITU-T G.992.1 (G.dmt), ITU-T G.992.2 (G.lite)ITU-T G.992.3 ( ADSL2) and ITU G.992.5 (G.ADSL2+) protocols.
The NCT240 greatly expand broadband capabilities in the access network, enhancing the infrastructure for emerging servic es. With simple in-service upgrades, service provid ers obtain the capacity and Quality of Service (QoS) to support larger populations of narrowband and broadband users. For management, NCT240 can be easily configured by SNMP, T elnet, SSH, HTTP, HTTPS and RS-232 console.
NetComm NCT240 Installation Guide Release 1.0
Features
Complete Intelligent L2 switch feature Intelligent DSL interworking feature
RFC2684 MpoA VPN pass-through RFC2516 PPPoE packet forwarding.
Advanced L2+/higher layer protocol & policy control
GVRP (IEEE 802.1q) STP/RSTP (IEEE 802.1d/w) IGMP Snooping DHCP relay and relay agent option 82 Packet inspection and do policy control (filtering, forwarding..)
Security of authentication mechanism and encryption
SSH/SSL
Rich user interface for management including security
CLI/Telnet/SSH/SNMP/HTTP/S-HTTP
Variety of uplink interface
SFP for 1000 Base-SX, LX, LHX and ZX. RJ45 for 1000 Base-TX.
Remote software upgrade
NetComm NCT240 Installation Guide Release 1.0
2. System Application
The following figures present the system application in the access network. NCT240 provides video, voice and data service for different users, such as Hotels, SOHOs, residential users and enterprises. The end user can use DSL for Various applications such as Telecommuting, Video streaming, On-line game, IPTV, Distance learning, Telemedicine, Voice over IP and Video conferencing...etc.
EMS: Element Management Switch
Internet
EMS
Basic System Application
PSTN
BRAS
PBX or DLC
Aggregator
Switch
ADSL2+ (1)
BAS-8124
ADSL2+ (2)
CIT
ADSL2 (24)
ADSL (3)
.
.
ADSL2+ Modem
.
.
PC
PC
PC
PC
NetComm NCT240 Installation Guide Release 1.0
3. System Requirement
LED Definition
Items LED color Function
PWR (power)
SYS (system)
SYS (system) - When the ACO/RST button is pressed
MAJ (Major alarm )
GREEN – SOLID Power on GREEN – SOLID Flashing GREEN – 2Hz System is booting up
Flashing GREEN – 4Hz
Flashing GREEN – 1Hz
RED Major alarm reporting
System finished initializing stage
System is ready to restart – release the ACO/RST button to restart System is ready to reset to Factory default – release the ACO/RST button to reset to factory default
MIN ( Minor alarm )
ADSL link
GE-FX Link
GE-TX Link
Hardware
Dimensions & Capacity
1. 19” wide rack mount available.
2. 1U height
3. Provide 24 DSL ports and built-in splitters.
Uplink Interfaces
1. The connector is SFP type at optical interface port.
2. The connector is RJ-45 at copper interface port.
3. When plug in SFP, the work interface will select optical interface automatic and copper interface is assistant interface. And when plug out SFP, the copper interface will change to work interface automatic.
4. Supported SFP optical module types have 1000 Base-SX, 1000 Base-LX, 1000 Base-LHX and 1000 Base-ZX.
Line Interfaces
1. Support 24 ports ADSL2+ line interface module (ATU-C).
2. Build in Splitter/Filter inte rnal.
3. The connectors are wire-wrapping; a converter device can be connected in between interfaces and user device at both ADSL2+ line interface and PSTN interface.
Management Interfaces
AMBER Minor alarm reporting GREEN ADSL link is UP Flashing GREEN DSL line is training (to linkup) AMBER Ethernet Fiber port is UP Flashing AMBER Dataflow activity in the port GREEN Ethernet Copper port is UP Flashing GREEN Dataflow activity in the port
NetComm NCT240 Installation Guide Release 1.0
1. One Ethernet interface (RJ45) support Full Duplex and Half Duplex transceiver function, conforms to IEEE 802.3 Auto-Negotiation standard and comply with IEEE802.3 Ethernet, IEEE802.3u Fast Ethernet.
2. One RS232 console interface (DB9) support Full Duplex, 1、2 stop bits and odd、 even、none parity check. The baud rate range ：12 00 baud rate ~ 921000 baud rate.
Power Supply
1. 60Wt. (input 90~260 VAC(10%), 50~60Hz)
2. 60Wt. (input –36~-72 VDC)
Operating Requirement
1. Temperature: -10ºC ~ 60ºC.
2. Humidity: 10~90% (non-condensing).
3. EMC/ESD Certification: FCC Part15 Class A.
4. Safety Certification : UL60950
ADSL/ADSL2+ Interface
1. ITU-T G.992.1 (G.dmt) [Annex A], ITU-T G.992.2 (G.lite) [Annex A]
2. ITU-T G.992.3 (ADSL2) [A,L], ITU-T G.992.5 (ADSL2+) [A,L]
3. OAM functionality according to ITU-T G.997.1 (G.ploam)
4. ANSI T1.413 Issue 2
5. Line loop back and diagnostic
Software Feature
L2/L3 Functionality
1. Switch capability: IEEE802.3x flow control, IEE E802.1d bridging.
2. VLAN: IEEE802.1p/q VLAN (4094), stacked VLAN, Port-based and Tag-based.
3. Multicasting: IGMP snooping, 250 groups , Dynamic & Static Configuration.
4. QoS: IEEE802.1p based COS, 4 priority output queue per port, RFC 2475
DiffServ/TOS.
5. DHCP: DHCP relay and relay agent option 82.
6. Rate Limitation: from 64K to Maximum rate, the ste p is 64K.
7. Security: Packet policy control (filtering/forwarding) and ACL function.
Interworking
1. RFC2684 MPoA LLC/VCMUX.
2. VPN pass-through
3. RFC2516 PPPoE packet forwarding.
Trouble Shooting
1. LED indicator for power, varied interfaces and system alar ms.
2. Cable labeling
3. Local and remote management by using serial and u plink interface
¾ On-line show link status, quality and traffic counters ¾ Loop back test ¾ Log event/alarm of system level ¾ Log event/alarm of GE and ADSL2+ interfaces
Management
1. CLI support for local management
2. SNMP V1/V2c
3. Telnet/SSH
NetComm NCT240 Installation Guide Release 1.0
4. Web-based
5. Support FCAPS management for EMS
6. Syslog
7. SNTP
8. Remote software upgrade
9. Remote file backup and restore
NetComm NCT240 Installation Guide Release 1.0
4. Installation Procedure
Equipment Checklist
Before installing the access switch please verify that you have received all the items listed u nder “Package Contents.” If any of the items are missing or damaged, contact your local distributor. Also, be sure you have all the necessary tools and cabling before installing the switch and splitter. Note that these devices can be installed on any suitably large flat surface or in a standard EIA 19-inch rack.
Package Contents
1. A NCT240 ADSL2+ IP DSLAM
2. A Bracket Mounting Kit containing two brackets and four screws for attaching the brackets to the DSLAM
3. One Power Cord
4. Four adhesive foot pads
5. One CD containing installation Guide and Management Guide
6. One RS-232 console cable (Optional)
7. Two RJ-21 cables (Optional)
NetComm NCT240 Installation Guide Release 1.0
Mounting
The NCT240 may be mounted on any flat surface, such as a shelf, or in a rack. Before you start installing the access switch, make sure you can provide the right operating environment, including power requirements, sufficient physical space, and proxim ity to other network devices that are to be connected. Verify the following installation requirements:
• Power requirements: 100 to 240 VAC (± 10%) at 50 to 60 Hz (± 3 Hz). The access switch power
supplies automatically adjust to the input voltage level. Make sure that a properly grounded power outlet is within 2.5 m (8 ft) of the access switch.
• The access switch should be located in a cool dry place, with at least 10 cm (4 in.)of space on
the sides for ventilation.
• Place the access switch out of direct sunlight, and away from heat sources or areas with a high
amount of electromagnetic interference. The temperature and humidity should be within the ranges listed in the specifications.
• If you intend to mount the access switch in a rack, make sure you have all the necessary
mounting screws, brackets, bolts and nuts, and the right tools.
• Check if network cables and connectors needed for installation are available.
• Be sure the access switch is within reach of the punch-down blocks for rear panel connections
that include DSL and splitter interface.
NetComm NCT240 Installation Guide Release 1.0
Installing Optional Modules
Before mounting the switch, be sure you install any optional modules. If you have purchased an optional slide-in 1000BASE-T, SFP 1000BASE-X, install it now, and following the instructions below. To rack-mount devices:
1. Attach the brackets to the device using the screws provided in the Bracket Mounting Kit.
Figure 4-1. Attaching the Brackets
2. Mount the device in the rack, using four rack-mounting screws.
NetComm NCT240 Installation Guide Release 1.0
Figure 4-2. Installing the Switch in a Rack
3. If installing a single switch only, turn to “Powering On the Switch” at the end of this chapter.
4. If installing several devices, we recommend using one stack for the switch, and another for
the others. This will keep the cabling straight and easy to maintain.
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