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Sigrand SG-16BG User Manual

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SIGRAND
Integrated access device
SHDSL modem
Sigrand SG-16BG
User's Guide
v. 2.5
Novosibirsk
2006
1

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  • Page 1 SIGRAND Integrated access device SHDSL modem Sigrand SG-16BG User's Guide v. 2.5 Novosibirsk 2006...
  • Page 2 © 2005, 2006 Sigrand LLC All trademarks and registered trademarks mentioned hereinafter are the property of their respective owners.

  • Page 3: Table Of Contents

    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 1.3 Ethernet Bridge specifications 1.4 E1 interface specifications 1.5 RS-232C interface specifications 1.6 Power supply unit 1.7 Miscellaneous data 1.8 Shipment contents 1.9 Environmental specifications...
  • Page 4 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 5: How To Use This Guide

    3.5.3 Line coding The e1 code command 3.5.4 Е1 interface statistics The e1 stat command 3.5.5 Timeslot map The e1 map command 3.5.5.1 Timeslot 0 3.5.5.2 Timeslot 16 4. Updating built-in modem firmware 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...
  • Page 6 Before starting installation of the modem we  recommend you to look for a updated version of this  User's Guide as well as the firmware and the drivers available at our site www.sigrand.com...

  • Page 7: Modem Description

    1. Modem description The Sigrand SG-16BG modem is a SНDSL-modem. It is able to exchange heterogeneous IP and TDM traffic through Ethernet interfaces and an E1 port. LAN interfaces work through a built-in Ethernet-bridge and are designed to connect distributed local area networks as well as remote computers and other devices equipped with an Ethernet interface.

  • Page 8: Dsl Interface Specifications

    Manual line coding selection is available only in the console  management mode – see chapter 3 of this Guide Compatibility: The Sigrand SG-16BG 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 9: Maximum Reach Performance

    1.1.1 Maximum reach performance Brief information about the maximum reach performance of the Sigrand SG-16BG modem is shown on Table 2. The Bit Error Rate (BER) at the maximum reach is equal to or less than 10 . The specified reach is proved by testing at the Sigrand lab reference line.

  • Page 10: File Transfer Performance

    2072 1995 R (Ω) 1.1.2 File transfer performance Performance of the SG-16BG 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 11: Ethernet Interface Specifications

    1.2 Ethernet interface specifications Interface type 10/100 Base-T Number of ports Data rate, Mbps 10/100 Duplex type Half and full duplex Compatibility ANSI/IEEE Std 802.3 Auto MDI/MDI-X available 1.3 Ethernet Bridge specifications MAC-address table size 2048 Maximum packet size, bytes 1536 Packet buffer size, KBytes: 512 (340 packets)

  • Page 12: Power Supply Unit

    165/6.5 • depth, mm/in. Weight, g/lb 450/1 Weight with PSU, g/lb 1025/2.26 Power consumption, W 1.8 Shipment contents Sigrand SG-16BG modem 1 pc. Power supply unit 1 pc. Guide 1 pc. Cable with converter RJ-45-DB-9 1 pc. Package 1 pc.

  • Page 13: Appearance, Controls, Indicators And Connectors

    1.10 Appearance, controls, indicators and connectors. The Sigrand SG-16BG 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 14: Rear Panel And Connectors

    No signal from Е1 equipment Frame synchronization detected or SYNC Unframed mode Frame synchronization not detected Test mode TEST Operation mode 1.10.2 Rear panel and connectors Layout of connectors and switches on the rear panel of the Sigrand SG- 16BG modem Figure 2...
  • Page 15 Purpose of connectors and switches of the Sigrand SG-16BG modem Table 4 Power supply unit plug 9-12V DC RS-232C console port for modem management RS232 DSL line connector Terminal to connect to protective ground PGND Dial to select fixed rate for DSL channel...
  • Page 16 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 Position...

  • Page 17: Modem Setup Directions

    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-16BG modem uses only one pair of pins, namely 4 and 5. Other pins are not assigned. •...

  • Page 18: Choosing Modem Management Method

    Fig.5 2.2 Choosing modem management method There are two ways to manage the modem: • by the DIP-switches placed on the rear panel of the modem (see fig.4); • by a terminal program via the RS-232C console port. Both modes have certain advantages over each other so a user is free to choose either setup mode according to actual requirements for modem operation.

  • Page 19: Rate Selection Guidelines

    The SET2 switch has the following meaning: • if SET2 is OFF, the rate is set manually at both ends of the line. (I this case modem uses Annex A for compatibility with firmware version 2.4 and lower) • if SET2 is ON, the DSL rate is set by the dial switch RATE of the “master”...

  • Page 20: Е1 Interface Setup

    2.5 Е1 interface setup 2.5.1 Connecting Е1 interface Equipment attached to the modem is required to have a balanced Е1 port, typically implemented as an RJ-45 socket. The interface uses 2 loops, one to receive, another to transmit the data. Pins 1 and 2 are assigned to the Е1 receiver input, pins 4 and 5 are assigned to the transmitter output (Table 6, figure 5).
  • Page 21 • If the DSL rate is less than or equal to 4096 kbps (i.e. the RATE dial was set to positions from 1 through E), the bandwidth is shared equally between the Ethernet and E1 interfaces; • If the DSL rate exceeds 4096 kbps (i.e. the RATE dial is in position ”F”...

  • Page 22: 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 Interface module M16-G Initialization complete 3.2 General purpose commands...

  • Page 23: The Help Command

    V.35, FXO/FXS. Therefore the help command displays commands for each interface available in this firmware. The info command displays information about the firmware version, the modem uptime, and current status of the modem interfaces. : info Sigrand SG-16B SHDSL modem V.2.5 Setup mode: Terminal...

  • Page 24: The Stat Command

    SHDSL firmware: V.5.3E FPGA configuration: V.2.20 Interface module ETH1/ETH2 Interface module M16-G Uptime: 0 days 01:08:55 E1A: Long-Haul UNFRAMED Code=HDB3 - OFFLINE 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...

  • Page 25: 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 Interface module M16-G 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 26: The Dsl Command

    Preactivation DSL RATE [rrrr|AUTO] | CODE cccc | MASTER | SLAVE - set mode for DSLx DSL ANNEX [A|B|F|G] - set Annex type DSL STAT [RESET] - show statistics for DSL (or clear it) DSL RETRAIN - force DSL to retrain The DSL command allows to view statistics, to enter or to change settings of the DSL interface.

  • Page 27: Setting Dsl Rate From "Master" Modem

    3.3.2.1 Setting DSL rate from “master” modem In order to control the rate by accessing the “master” modem only, configure both modems beforehand for Preactivation (dsl cfg preact) and Annex F (dsl annex f): : dsl cfg preact annex f DSL: CFG=PREACT Rate=2304 Code=TCPAM16 MASTER Annex=F - OFFLINE The rate setup is performed by the RATE rrrr option (“rrrr”...

  • Page 28: Line Coding Selection

    : dsl cfg local annex a DSL: CFG=LOCAL Rate=5696 Code=TCPAM32 MASTER Annex=A OFFLINE Manual rate setup is performed by the RATE rrrr option (“rrrr” stands for rate in kbps). The rate is within 64 to 6016 kbps range with 64 kbps step.

  • Page 29: The Dsl Code Command

    The code cccc option of the dsl command provides a way to select a line coding mode of 4 available (ТСРАМ32, ТСРАМ16, ТСРАМ8 and ТСРАМ4). It allows to select a proper mode in according to ratings of the line. : dsl code tcpam8 DSL: CFG=LOCAL Rate=512 Code=TCPAM8 MASTER Annex=A –...

  • Page 30: The Dsl Stat Reset Command

    Legend: ONLINE – the DSL link is activated; OFFLINE – the DSL link is not activated; TX – the number of transmitted packets; RX – the number of received packets; ERR – the number of received packets with errors; LOSW – the number of frame synchronization loss events; CRC6 –...

  • Page 31: Ethernet Interfaces Management

    : dsl retrain DSL: CFG=LOCAL Rate=512 Code=TCPAM8 SLAVE Annex=A – OFFLINE 3.4 Ethernet interfaces management The Sigrand SG-16BG modem features two Ethernet 10Base-T/100Base-T ports with Auto MDI/MDI-X. The following commands allow to manage the ports: : help eth ETHx - show current ETHx settings, ETHx=1,2...

  • Page 32: The Eth Auto, Eth /Auto, Eth Rate, Eth

    Transmission rate and duplex type are detected automatically in Auto- Negotiation mode. The priority of operation mode detection descends from 100Base-TX Full Duplex (the highest priority), 100Base-TX Half Duplex, 10Base-T Full Duplex down to 10Base-TX Half Duplex (the lowest priority). To disable the Auto-Negotiation mode use the eth1 or the eth2 commands with the /auto option: : eth1...

  • Page 33: Flow Control

    Use the eth1 or the eth2 command with the auto option to enable Auto- Negotiation mode: : eth1 ETH1: Rate=10 Mbit/s Duplex=FULL FlowCont – ONLINE : eth1 auto ETH1: Rate=100 Mbit/s Duplex=FULL Auto-Neg FlowCont – ONLINE 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.

  • Page 34: Е1 Interface Management

    3.5 E1 interface management The Sigrand SG-16BG modem features one E1 (G.703/G.704, 2048 kbps) port. The following commands allow to manage the port: :help e1 E1 - show current E1 settings E1 [SHORT|LONG] - select Short-Haul or Long-Haul mode E1 CODE [AMI|HDB3] - set E1 line code...

  • Page 35: Framing Modes And Superframe Options

    : e1 long E1A: Long-Haul UNFRAMED Code=HDB3 – ONLINE : e1 short E1A: Short-Haul UNFRAMED Code=HDB3 – ONLINE 3.5.2 Framing modes and superframe options The G.704 framed mode is enabled by the е1 command with the framed option and additional keys crc4 and cas. These keys defines enable the appropriate CRC4 and CAS superframes.
  • Page 36 E1A: Long-Haul FRAMED CRC4 Code=HDB3 – ONLINE : e1 /crc4 E1A: Long-Haul FRAMED Code=HDB3 – ONLINE : e1 /framed E1A: Long-Haul UNFRAMED Code=HDB3 – ONLINE Disabling framing synchronization also disables the CRC4 and CAS superframes. : e1 E1A: Long-Haul FRAMED CRC4 CAS Code=HDB3 – ONLINE : e1 /framed E1A: Long-Haul UNFRAMED Code=HDB3 –...
  • Page 37 : e1 stat E1A: Long-Haul FRAMED CAS Code=HDB3 – ONLINE FAS_Sync=No CAS_Sync=No CV=0 FASE=0 Loop Loss: 37.5 dB FAS_Sync – framing synchronization status; CAS_Sync – CAS superframe synchronization status; CRC4_Sync – CRC4 superframe synchronization status; CV – the number of code violations FASE –...
  • Page 38 Timeslot numbers destined for transmission are defined by timeslot map. Each of 32 timeslots can be individually included or excluded from the number of transmitted timeslots. The е1 command with the map option allows to view and modify the timeslot map. The timeslots destined for transmission are marked by asterisk (*).
  • Page 39 01234567890123456789012345678901 ---**-*------------------------- Used timeslots: 3 Payload: 192 kbit/s : e1 map add 8-11 E1A: Long-Haul FRAMED Code=HDB3 – ONLINE 01234567890123456789012345678901 ---**-*-****-------------------- Used timeslots: 7 Payload: 448 kbit/s : e1 map add all E1A: Long-Haul FRAMED Code=HDB3 – ONLINE 01234567890123456789012345678901 ******************************** Used timeslots: 32 Payload: 2048 kbit/s If total capacity of timeslots exceeds the DSL interface rate, the following warning appears while map examination: “Too many timeslots for...
  • Page 40 01234567890123456789012345678901 ---****--------***************** Used timeslots: 21 Payload: 1344 kbit/s : e1 map del all E1A: Long-Haul FRAMED Code=HDB3 – ONLINE 01234567890123456789012345678901 -------------------------------- Used timeslots: 0 Payload: 0 kbit/s To apply a new timeslot map enter the dsl retrain  command. It is required to reconfigure the DSL interface upon changing the map.
  • Page 41 If the timeslot 0 is used to transmit payload data in additional (service) bit positions, it may also be included to the list of transmitted timeslots: : e1 map add 0 E1A: Long-Haul FRAMED Code=HDB3 – ONLINE 01234567890123456789012345678901 *--***************************** Used timeslots: 30 Payload: 1920 kbit/s 3.5.5.2 Timeslot 16 The timeslot 16, conforming to G.704 recommendation, is reserved for signaling.
  • Page 42 4. Updating built-in modem firmware Use the update command to update the built-in firmware of the Sigrand SG-16BG 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 43 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...
  • Page 44 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 OOO “Sigrand”, pr. Lavrentieva 6, Novosibirsk, Russia Phones +7 (383)-330-02-43, 332-94-37 Fax +7 (383)-332-02-43 www.sigrand.com...
  • Page 45 WARRANTY COUPON For Sigrand SG-16BG 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 46 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 47 Table I.2 Cable loop resistance to conductor diameter ratio: Conductor diameter Loop resistance (mm) (Ω/km) 0.32 0.64...

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