Gebruiksaanwijzing /service van het product 2707/I van de fabrikant Patton electronic
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USER MANUAL MODEL 2707/I G.703 NTU with 10Base-T Ethernet Interface SALES OFFICE (301) 975-1000 TECHNICAL SUPPOR T (301) 975-1007 P ar t# 07M2707I Doc# 08625U2-001 Rev .
2 1.0 Warranty Information ................................................................. 4 1.1 Radio and TV Interference ............................................................ 4 1.2 CE Notice .................................................
3 B.9 Diagnostics ................................................................................. 21 B.10 Indicators .................................................................................... 21 B.11 Configuration .........................
4 1.0 W ARRANTY INFORMATION P atton Electronics warrants all Model 2707/I components to be free from def ects, and will—at our option—repair or replace the product should it f ail within one year from the first date of shipment.
5 als A uthorization number on the outside of the shipping container . This number ma y be obtained from Patton Electronics T echnical Ser vices at: • T el: +1 (301) 975-1007 • Email: support@patton.com • URL: http://www .patton.com Note P ackages received without an RMA number will not be accepted.
6 2.0 GENERAL INFORMATION Thank you f or your purchase of this P atton Electronics product. This product has been thoroughly inspected and tested and is warranted f or One Y ear par ts and labor .
7 3.0 PPP OPERATIONAL BACKGR OUND PPP is a protocol used f or multi-ple xed transport over a point-to-point link. PPP operates on all full duple x media, and is a symmetr ic peer-to- peer protocol, wh.
8 Figure 1. Cisco router with serial interface, configured as PPP Half Bridge. Figure 1 shows a typical Cisco router with a serial interf ace configured as a PPP Half Bridge. The router ser ial interf ace connects to the W AN via a 2707/C (V .35) E1 NTU and to the remote 2707/I with suppor t for PPP bridging.
9 4.0 CONFIGURATION The Model 2707/I f eatures configuration capability via hardware DIP s witches. This section describes all possible DIP s witch configurations of the Model 2707/I. 4.1 DIP SWITCH CONFIGURATIONS The Model 2707/I has an internal DIP switch that enables configur ation f or a wide range of applications.
10 Switch S1 settings T able 1 sho ws the settings f or DIP s witch S1-1 thru S1-8. SW1-1 Line Coding: HDB3 (default) Use Switch SW1-1 to control the Network Line Coding options. Set these options to be the same as the Line Coding given to y ou by your Service Provider .
11 The receiver recogniz es 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 whene ver possib le. • AMI .
12 5.0 INSTALLATION Once the Model 2707/I is properly configured, it is ready to connect to the G.703 interf ace, to the Ethernet por t, 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.
13 Connecting Dual Coaxial Cable (75 ohm) to the G.703 Netw ork Ref er to Figure 5 to make the proper connections . Figure 5. Rear panel, showing location of connectors Note The outer conductor of the coax cables are isolated from system ear th ground.
14 Connecting the T wisted Pair (120 ohm) to the G.703 Network Ref er to the pinout and signals chart in Figure 6 to connect the 120-ohm G.703 network channel.
15 Figure 8. 10Base-T cross-ov er cable connection Connecting the 10Base-T Ethernet P or t to a Hub The 10Base-T interf ace is configured as DTE (data terminal equipment), just like a 10Base-T netw ork interface card in a PC . Theref ore, it “e xpects” to connect to a 10Base-T Hub using a straight-through RJ-45 cable .
16 DC Power . The 36–60 VDC DC-to-DC adapter supplied with the DC ver- sion of the Model 2707/I plugs in a DC source (nominal 48 VDC) and plugs into the barrel power supply jac k on the rear of the 2707/I. Refer to Figure 10 to make the proper connection.
17 6.0 OPERATION When the Model 2707/I has been properly configured and installed, it should operate transparently . This section descr ibes power-up , LED sta- tus monitors, and the b uilt-in loopback test modes .
18 T able 2: LED descriptions LED Description E1 Link (Active Green) Solid g reen (On) indicates that the end to end E1 Link is up , signifying that the link is active .
19 6.3 OPERATING LINE LOOPBACK (LL) The Line Loopback (LL) test chec ks the operation of the local Model 2707/I, and is perf ormed separately on each unit. Figure 12. Line loopback f or a networ k ter mination application T o perform an LL test, set DIP s witch S1-2 to On .
20 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 Networ k (Receive Reco ver) A.
21 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 Ether net B.4 PROTOCOL PPP (RFC 1661) with Bridging Control (RFC 1638) B.5 MAC ADDR ESS T ABLE SIZE 4096 entries B.
22 B.12 POWER SUPPLY 5 VDC external power supply 100–240V AC , 50–60Hz, 0.4A B.13 HUMIDITY Up to 90% non-condensing B.14 T EMPERATURE 0–50°C (32–122°F) B.
23 APPENDIX C F ACTOR Y REPLACEMENT P AR TS AND ACCESSORIES P atton Model # Description 2707/C G.703 NTU with a V .35 interface 2707/D G.703 NTU with an X.
24 Cop yright © 2006 P atton Electronics Company All Rights Reser ved..
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