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Summary of Contents for Patton electronics Netlink 2707/I
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Page 1: Ethernet Interface
Part# 07M2707I-UM Doc# 08625U2-001 Rev. C Revised 10/27/06 An ISO-9001 Certified Company USER MANUAL MODEL 2707/I G.703 NTU with 10Base-T Ethernet Interface SALES OFFICE (301) 975-1000 TECHNICAL SUPPORT (301) 975-1007... -
Page 2: Table Of Contents
Warranty Information ... 4 Radio and TV Interference... 4 CE Notice... 4 Service... 4 General Information... 6 Features... 6 Description... 6 PPP Operational Background... 7 Applications ... 7 Configuration ... 9 DIP Switch Configurations ... 9 Switch S1 settings ... 10 SW1-1 Line Coding: HDB3 (default)... - Page 3 B.9 Diagnostics ... 21 B.10 Indicators ... 21 B.11 Configuration ... 21 B.12 Power Supply ... 22 B.13 Humidity ... 22 B.14 Temperature ... 22 B.15 Dimensions ... 22 Factory Replacement Parts and Accessories... 23...
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Page 4: Warranty Information
1.1 RADIO AND TV INTERFERENCE The Model 2707/I generates and uses radio frequency energy, and if not installed and used properly—that is, in strict accordance with the manu- facturer's instructions—may cause interference to radio and television reception. - Page 5 als Authorization number on the outside of the shipping container. This number may be obtained from Patton Electronics Technical Services at: • Tel: +1 (301) 975-1007 • Email: support@patton.com • URL: http://www.patton.com Note Packages received without an RMA number will not be accepted.
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Page 6: General Information
The 2707/I supports PPP (RFC 1661) and BCP (RFC 1638). The Model 2707/I is a 10Base-T bridge that operates over G.703 lines. It uses MAC learning and forwarding to provide seamless LAN-to-LAN connectivity. As a result, corporate enterprises can connect their servers to a pair of NTUs and automatically forward data packets that are meant for the remote network. -
Page 7: Ppp Operational Background
3.0 PPP OPERATIONAL BACKGROUND PPP is a protocol used for multi-plexed transport over a point-to-point link. PPP operates on all full duplex media, and is a symmetric peer-to- peer protocol, which can be divided into the following main components: • A standard method to encapsulate datagrams over serial links •... - Page 8 Model 2707/I Ethernet Customer’s Site Figure 1. Cisco router with serial interface, configured as PPP Half Bridge. Figure 1 shows a typical Cisco router with a serial interface configured as a PPP Half Bridge. The router serial interface connects to the WAN via a 2707/C (V.35) E1 NTU and to the remote 2707/I with support for...
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Page 9: Configuration
Model 2707/I. 4.1 DIP SWITCH CONFIGURATIONS The Model 2707/I has an internal DIP switch that enables configuration for a wide range of applications. The DIP switch is accessed from the underside. Figure 2 shows the location of the DIP switches on the bottom of the printed circuit board. -
Page 10: Switch S1 Settings
Description S1-1 Line Coding S1-2 Line Loopback (toward E1 line) Note The Model 2707/I, when in line loopback mode, will loop the network line and return any trafic received on the E1 line to the sending device at the remote end. - Page 11 The receiver recognizes these special violations and decodes them as zeros. This method enables the network to meet minimum pulse den- sity requirements. Unless AMI is required in your application, HDB3 should be used whenever possible. • AMI. Alternate Mark Inversion defines a pulse as a "mark,” a binary one, as opposed to a zero.
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Page 12: Installation
Once the Model 2707/I is properly configured, it is ready to connect to the G.703 interface, to the Ethernet port, and to the power source. This section describes how to make these connections. 5.1 CONNECTING TO THE G.703 NETWORK AND ETHERNET LAN This section describes installing the G.703 (75-ohm and 120-ohm),... -
Page 13: Connecting Dual Coaxial Cable (75 Ohm) To The G.703 Network
Connecting Dual Coaxial Cable (75 ohm) to the G.703 Network Refer to Figure 5 to make the proper connections. DataTO Network Figure 5. Rear panel, showing location of connectors Note The outer conductor of the coax cables are isolated from system earth ground. -
Page 14: Connecting The Twisted Pair (120 Ohm) To The G.703 Network
Figure 6. G.703 120-ohm connection. Connecting the 10Base-T Ethernet port to a PC (DTE) To connect the Model 2707/I to another DTE device such as a 10Base-T network interface card, construct a 10Base-T crossover cable and con- nect the wires as shown in Figure 7 below and Figure 8 on page 15. -
Page 15: Connecting The 10Base-T Ethernet Port To A Hub
Many international power cords are available for the universal power supply. Note The Model 2707/I powers up as soon as it is plugged into an AC outlet—there is no power switch. 10Base-T DTE RJ-45 Pin No. -
Page 16: Dc Power
DC Power. The 36-60 VDC DC to DC adapter is supplied with the DC version of the Model 2707/I. The black and red leads plug into a DC source (nominal 48VDC) and the barrel power connector plugs into the barrel power supply jack on the 2707/I. (See Figure 10). -
Page 17: Operation
6.0 OPERATION When the Model 2707/I has been properly configured and installed, it should operate transparently. This section describes power-up, LED sta- tus monitors, and the built-in loopback test modes. 6.1 POWER-UP Before applying power to the Model 2707/I, please review section “Power Connection”... - Page 18 E1 Link (Active Green) Solid green (On) indicates that the end to end E1 Link is up, signifying that the link is active. The E1 Link LED is Off when the link is down. 10BT Link (Active Green) Solid green indicates that the 10Base-T Ethernet interface has detected a valid SQE heartbeat, signifying a valid 10Base-T connection.
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Page 19: Operating Line Loopback (Ll)
Clock/ Data Figure 12. Line loopback for a network termination application To perform an LL test, set DIP switch S1-2 to while the unit is in loopback test mode. G.703 NTU Model 2707/I Network Clocking Cable Span Data Model 2707/I... -
Page 20: A G.703 Specifications
APPENDIX A G.703 SPECIFICATIONS A.1 NETWORK DATA RATE 2.048 Mbps A.2 NETWORK CONNECTOR RJ-48C/Dual Coax BNC A.3 NOMINAL IMPEDANCE 75/120 ohm A.4 LINE CODING Selectable AMI or HDB3 A.5 LINE FRAMING G.703 (Unframed) A.6 CLOCKING Internal or Network (Receive Recover) A.7 DISTANCE Maximum 6,000 ft (1.6 km) On 24 AWG cable... -
Page 21: Ethernet 10Base-T Specifications
APPENDIX B ETHERNET 10BASE-T SPECIFICATIONS B.1 DTE INTERFACE 10Base-T on RJ-45F B.2 DTE DATA RATES 10 Mbps B.3 LAN CONNECTION RJ-45, 10Base-T, 802.3 Ethernet B.4 PROTOCOL PPP (RFC 1661) with Bridging Control (RFC 1638) B.5 MAC ADDRESS TABLE SIZE 4096 entries B.6 MAC ADDRESS AGING MAC addresses deleted after 8 minutes of inactivity B.7 FRAME BUFFER... -
Page 22: Power Supply
B.12 POWER SUPPLY 5 VDC external power supply 100–240VAC, 50–60Hz, 0.4A B.13 HUMIDITY Up to 90% non-condensing B.14 TEMPERATURE 0–50°C (32–122°F) B.15 DIMENSIONS 3.5L x 2.1W x 0.78H in.(9.0L x 5.3W x 2.0H cm) -
Page 23: Factory Replacement Parts And Accessories
FACTORY REPLACEMENT PARTS AND ACCESSORIES Patton Model # 2707/C G.703 NTU with a V.35 interface 2707/D G.703 NTU with an X.21 interface 2707/I G.7034 NTU with 10Base-T ethernet interface 08055DCUI Universal Input Power Supply 07M2707/I User Manual APPENDIX C Description... - Page 24 Copyright © 2006 Patton Electronics Company All Rights Reserved.
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