Nortel Contivity 1700 Installing Manual

Also see for Contivity 1740: Install guide Product support bulletin Installing Installing

Contents

Nortel Contivity 1700 Installing Manual Manual pdf 77 page image

Appendix A Technical specifications 77Installing the Contivity 1700T1/E1 CSU/DSU WAN interface cardThe T1/E1 CSU/DSU WAN interface card has a single connector that provides thesignals needed to interface to T1 or E1 equipment. Figure 32 shows the T1/E1CSU/DSU WAN interface card. This interface card ships as a half-height card andas a full-height card.Figure 32 T1/E1 CSU/DSU WAN interface cardThe connector on the T1/E1 CSU/DSU WAN interface accommodates an 8-pinRJ-48 modular patch cord. These cables are commonly sold as Category 5, orEthernet, cables.The cable you use should be wired in accordance with EIA-568-A wiring style.This wiring style ensures that the transmit signal (pins 4 and 5) and the receivesignal (pins 1 and 2) are carried on a twisted pair inside the patch cord. The use offactory-made patch cords is strongly recommended.You connect the T1/E1 CSU/DSU WAN interface card to the service providernetwork using a straight-through cable or a crossover cable, depending on how theservice provider wired its jack.• For a straight-through connection, you can use a standard Category 5(Ethernet) straight-through cable.• For a crossover connection, you cannot use a standard Category 5 crossovercable. The T1/E1 CSU/DSU crossover cable and the Ethernet crossover cableare not interchangeable.Note: For E1 service, you must install the half-height version of theT1/E1 CSU/DSU WAN interface card.Note: Nortel Networks does not supply the T1/E1 CSU/DSU WANinterface cable with the WAN interface card.CS160012A