1. Manuals
  2. Brands
  3. Sigrand Manuals
  4. Modem
  5. SG-16B
  6. User manual

Sigrand SG-16B User Manual

Shdsl modem
Hide thumbs
Table of Contents

Advertisement

Quick Links

Download this manual
SIGRAND
SHDSL modem
Sigrand SG-16B
User's Guide
v. 2.5
Novosibirsk
2006
1

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the SG-16B and is the answer not in the manual?

Questions and answers

Related Manuals for Sigrand SG-16B

Summary of Contents for Sigrand SG-16B

  • Page 1 SIGRAND SHDSL modem Sigrand SG-16B User's Guide v. 2.5 Novosibirsk 2006...

  • Page 2: Table Of Contents

    © 2005, 2006, Sigrand LLC All trademarks and registered trademarks mentioned hereinafter are the property of their respective owners. Contents Contents page How to use this Guide 1. Modem description 1.1 DSL interface specifications 1.1.1 Maximum reach performance 1.1.2 File transfer performance 1.2 Ethernet interface specifications...
  • Page 3 The info command The stat command The default command The reboot command 3.3 DSL interface management The help dsl command The dsl command 3.3.1 “Master”/”slave” mode selection The dsl master and dsl slave commands 3.3.2 Setting DSL rate 3.3.2.1 Setting DSL rate from “master” modem The dsl rate command 3.3.2.2 Setting DSL rate manually both sides 3.3.3 Line coding selection...

  • Page 4: How To Use This Guide

    How to use this Guide To ease using this Guide the following notational conventions are provided here (icons as well as relevant fonts): Icons Icon Meaning Explanation The text marked by this icon  contains information making easy Pay attention! setup and maintenance of equipment The text marked by this icon...
  • Page 5 Before starting installation of the modem we  recommend you to look for an updated version of this  User's Guide as well as the firmware and the drivers available at our site www.sigrand. com...

  • Page 6: Modem Description

    1. Modem description The Sigrand SG-16B modem is a SНDSL-modem. It features an Ethernet- bridge and is designed to connect distributed local area networks as well as remote computers and other devices equipped with an Ethernet interface. The bridge can transmit VLAN IEEE 802.1Q tagged packets through the DSL interface and the Ethernet interfaces.

  • Page 7: Dsl Interface Specifications

    Compatibility: The Sigrand SG-16B modem line coding is compatible with all Sigrand SG-16 series and Granch SBNI16 series modems. Limitations of compatibility: Interoperability with the Granch SBNI16 modems is supported only within the compatible data rate range from 64 to 4608 kbps.

  • Page 8: Maximum Reach Performance

    10 . The specified reach is proved by testing at the Sigrand lab reference line. Full version of the rate table is available at our site www.sigrand.com. An actual reach may vary against the shown data due to variations of cable performance.

  • Page 9: File Transfer Performance

    1995 R (Ω) 1.1.2 File transfer performance Performance of the SG-16B modem during file transferring by FTP protocol is shown on Table 3. The table contains average readings obtained on a line with error rate less than 10 Table 3...

  • Page 10: Ethernet Bridge Specifications

    1.3 Ethernet Bridge specifications MAC-address table size 2048 Maximum packet size, bytes 1536 Packet buffer size, KBytes: 512 (340 packets) 1.4 RS-232C interface specifications Baud rate 9600, 57600 Protocol parameters 8-N-1 Flow control Connector type RJ-45 (DB-9F with converter) 1.5 Power supply unit Type BPN-12-1V Input voltage...

  • Page 11: Environmental Specifications

    1.9 Appearance, controls, indicators and connectors The Sigrand SG-16B modem should be connected either to a computer equipped with an Ethernet or Fast Ethernet card or to an Ethernet-switch. We recommend to connect the modem to an Ethernet switch, not a hub, since our equipment is optimized for interaction with Ethernet switches.
  • Page 12 Figure 1 Purpose of Sigrand SG-16B indicators Table 3 Indicator Status Explanation POWER Modem is on POWER Modem is off ETHERNET ( channels 1 and 2) Valid Ethernet link detected LINK Ethernet link not detected Blink Traffic exchange 100Base-TX link detected...

  • Page 13: Rear Panel And Connectors

    1.9.2 Rear panel and connectors Layout of connectors and switches on the rear panel of the Sigrand SG-16B modem Figure 2 Purpose of connectors and switches of the Sigrand SG-16B modem Table 4 Power supply unit plug 9-12V DC RS-232C console port for modem management...
  • Page 14 Fig. 4 The “SET1” DIP switch selects “Master/Slave” mode, the “SET2” switch defines a method of the DSL channel rate negotiation and the “SET4” switch sets a mode of modem management. Purpose of the switches are shown on Table 5. Table 5 Switch Purpose...

  • Page 15: Modem Setup Directions

    Attention! Reboot the modem to activate a new modem operation mode, changed by the DIP switches! 2. Modem setup directions 2.1 Connecting modem to a line Make sure the line has no foreign devices varying its specifications such as fuses, inductors, load coils and other similar line conditioning devices.

  • Page 16: Choosing Modem Management Method

    After you verify that the line comply with the aforementioned requirements - • Fix the supplied RJ-45 plug on the cable in accordance with figure 5. The Sigrand SG-16B modem uses only one pair of pins, namely 4 and 5. Other pins are not assigned. •...

  • Page 17: Setting Dsl Rate

    2.4 Setting DSL rate Fixed rate value is set by dial switch RATE (figures 2 and 4). One of 16 fixed data rates have to be selected by the dial. 2.4.1 Setting DSL rate for remote modem This feature is available only for modems with firmware version 2.5 or higher. The SET2 switch has the following meaning: •...

  • Page 18: Modem Management Via Console Port

    Baud rate (Bits per second) should be set to 9600 or 57600 in accordance with SET3 switch setting. Power on or reboot the modem. If the terminal has been set up properly, the following message appears on the screen: Sigrand SG-16B SHDSL modem V.2.5 Interface module ETH1/ETH2 Initialization complete...

  • Page 19: General Purpose Commands

    3.2 General purpose commands The modem is managed by a set of commands conventionally divided into two types: the “general purpose” commands such as help, info, update, default, reboot, and the interface management commands such as dsl and eth1/eth2. Capabilities of the console management mode allow to configure the DSL interface as well as to control the Ethernet interfaces.
  • Page 20 : info Sigrand SG-16B SHDSL modem V.2.5 Setup mode: Terminal SHDSL firmware: V.5.3E FPGA configuration: V.2.20 Interface module ETH1/ETH2 Uptime: 0 days 01:08:55 ETH1: Rate=100 Mbit/s Duplex=FULL Auto-Neg FlowCont - OFFLINE ETH2: Rate=100 Mbit/s Duplex=FULL Auto-Neg FlowCont - OFFLINE DSL: CFG=PREACT Rate=192 Code=TCPAM16 MASTER Annex=F - OFFLINE...

  • Page 21: The Reboot Command

    The reboot command performs reset of the modem. : reboot Rebooting... Sigrand SG-16B SHDSL modem V.2.5 Interface module ETH1/ETH2 Initialization complete The update command is used to update the modem firmware. Detailed procedure of firmware reprogramming is discussed in chapter 4 of this Guide.

  • Page 22: The Dsl Command

    command allows to view statistics, to enter or to change settings of the DSL interface. The command invoked with no option displays current settings of the interface : dsl DSL: CFG=PREACT Rate=192 Code=TCPAM16 MASTER Annex=F – OFFLINE 3.3.1 “Master”/”slave” mode selection Configure one peer modem as “master”, do another one as “slave”...

  • Page 23: Setting Dsl Rate Manually Both Sides

    The rate setup is performed by the RATE rrrr option (“rrrr” stands for rate in kbps). The rate is within 192 to 5696 kbps range with 64 kbps step: : dsl rate 192 DSL: CFG=PREACT Rate=192 Code=TCPAM16 MASTER Annex=F - OFFLINE : dsl rate 5696 DSL: CFG=PREACT Rate=5696 Code=TCPAM32 MASTER Annex=F –...

  • Page 24: Line Coding Selection

    : dsl rate 6016 DSL: CFG=LOCAL Rate=6016 Code=TCPAM32 MASTER Annex=A - OFFLINE : dsl rate 64 DSL: CFG=LOCAL Rate=64 Code=TCPAM4 MASTER Annex=A - OFFLINE The line coding mode is also changed accordingly upon the rate change. See how rates match line coding on Chart 1. 3.3.3 Line coding selection As mentioned above, different TСРАМ...

  • Page 25: Link Statistics

    As follows from Chart 1, many data rates allows to use multiple line coding modes. Rule: apply a coding mode with less positions  (ТСРАМ8, ТСРАМ4) on a line exposed to high level of noise; apply a coding mode with more positions (ТСРАМ32, ТСРАМ16) if bandwidth is limited.

  • Page 26: How To Force A Retrain

    Retraining of the DSL interface is performed by the dsl command with the retrain option: : dsl retrain DSL: CFG=LOCAL Rate=512 Code=TCPAM8 SLAVE Annex=A – OFFLINE 3.4 Ethernet interfaces management The Sigrand SG-16B modem features two Ethernet 10Base-T/100Base-T ports with Auto MDI/MDI-X.

  • Page 27: The Eth Command

    The following commands allow to manage the ports: : help eth ETHx - show current ETHx settings, ETHx=1,2 ETHx RATE [10|100]|FULL|HALF|[/]AUTO|[/]FLOW mode ETHx ETHx STAT [RESET] - show statistics for ETHx (or clear it) The eth command allows to view statistics, to enter or to change Ethernet interface settings.
  • Page 28 : eth1 ETH1: Rate=100 Mbit/s Duplex=FULL Auto-Neg FlowCont – ONLINE : eth1 /auto ETH1: Rate=100 Mbit/s Duplex=FULL FlowCont – ONLINE If Auto-Negotiation mode is off, use either the eth1 or the eth2 commands respectively with the rate 10 or the rate 100 options to set the Ethernet interface rate manually: : eth1 rate 100 ETH1: Rate=100 Mbit/s Duplex=FULL FlowCont –...

  • Page 29: Flow Control

    3.4.2 Flow control Besides setting of the rate and the transmission mode, the modem features flow control in compliance with the IEEE 802.3x specifications. It improves operation, protects packet buffer against overflowing and prevents data loss. This technique may also improve total network throughput and help to achieve optimal performance.

  • Page 30: Updating Built-In Modem Firmware

    4. Updating built-in modem firmware Use the update command to update the built-in firmware of the Sigrand SG- 16B modem in the following order: : update Load new image? (y/n) Y Upon entering procedure acknowledgement Y the memory buffer is clearing and the prompt to download the image file appears here: Clearing buffer memory...
  • Page 31 Clearing buffer memory... OK Loading image... OK Checking image... OK, Type=SG16HOST V.2.5 Program new image? (y/n) Y Enter acknowledgement Y to complete the write procedure: Checking BootLoader... OK Self-Programming... OK Rebooting... press N or Esc as a response to any prompt to cancel the update procedure: : update Load new image? (y/n) N Update canceled!

  • Page 32: Warranty And Scope Of Liability

    Manufacturer has been advised of the possibility of such damages. Warranty limitations: Warranty is void for modems operating on wires having aerial sections. MANUFACTURER ADDRESS Sigrand LLC pr. Lavrentieva 6, Novosibirsk, Russia Phones +7 (383)-330-02-43, 332-94-37 Fax +7 (383)-332-02-43 www.sigrand.com...
  • Page 33 WARRANTY COUPON For Sigrand SG-16B modem Serial number _________________________________________ MFG date ____/____/200__ month year Quality checker_______________/_____________/ Stamp Seller Address Phone Sale date Stamp Signature Purchaser Address Phone Purchase date Stamp Signature...
  • Page 34 Appendix I General specifications of TPP cable Table I.1 Frequency response for twisted-pair cabling with copper conductor and PE-insulation (for reference only) Secondary ratings Primary ratings |Z|, Ω α, dB/km R~, Ω/km L, H/km*10 G,S/km*10 Conductor diameter 0.4 mm (26 AWG) 5.51 1.13 225.2...

  • Page 35: Appendix

    Line Code To make interact the SG-16 SHDSL modems select line coding according to the rate, Table 2 and Chart 1. Set up the same line coding for both the SG-16PCI modem and the SG-16B modem. 3. Operation mode (Master/Slave)
  • Page 36 “Slave” (or “STU-R”). 4. HDLC Frame Options Interaction between the SG-16PCI and the SG-16B SHDSL modems requires to set up “CRC32/CRC16” to value “CRC32” and “Fill Byte Value” to value “All bits are 1” on the SG-16PCI card.

Table of Contents