ACCULINK 317x E1 DSU/CSU2-8 December 1996 3170-A2-GB20-20Cabling ExamplesThe E1 DSU/CSU is supplied with an ac powermodule. You must provide the DTE and network cables.Optional cables that you can order from the companyare described in Appendix D, Pin Assignments.Figure 2-13 illustrates some cabling examples.CAUTIONDisconnect the power cablebefore connecting or removingany data cables at the rear ofthe unit.NOTEThe 120Ω/75Ω switch selectseither the 120 ohm balancednetwork interface or the 75 ohmunbalanced network interface.The RX SHIELD switch selectseither an “open” or “earth” shieldconnection for the 75 ohm RXinterface. (This switch must be setto “open” when using the 120 ohminterface.)POWER AUXPORT COMPORTDTEPORT 1 PORT 2CLOCK IN120Ω 75Ω 75Ω120ΩRX SHIELDOPENEARTHRX75ΩTX NETWORKCAUTION: AUX PORT OR COM PORT MUST NOT BECONNECTED TO PSTN OR E1 NETWORKPOWER AUXPORT COMPORTDTEPORT 3 PORT 4PORT 1 PORT 2CLOCK IN120Ω 75Ω 75Ω120ΩRX SHIELDOPENEARTHRX75ΩTX NETWORKCAUTION: AUX PORT OR COM PORT MUST NOT BECONNECTED TO PSTN OR E1 NETWORK495-14673-01NETWORKTO ACPOWERMODULETO DCPOWER(OPTIONAL)3100-F1-5503100-F1-540FRONTPANELDSU/CSUDSU/CSUDSU/CSUSERIALPORTCOM PORT NETWORKCOM PORT NETWORK3100 SERIESFRONT PANELEMULATIONSOFTWARE,3100-C1-010NOTE: 3100-F1-520NETWORKSNMPMANAGER ORFigure 2-13. Cabling Examples
