3Com AccessBuilder 4000 Installation Manual

Also see for AccessBuilder 4000: Installation guide

Contents

C-8 APPENDIX C: INSTALLING I/O CARDSIf you have mistakenly received the wrong synchronous cable with yourI/O card, contact your supplier for a replacement.To cable a synchronous card:1 Connect the DB-50 end of the cable to the synchronous port on theI/O card, then attach the other end to the CSU/DSU or modemconnector, as shown in Figure C-7.Figure C-7 Connecting a Cable to a Synchronous I/O CardISDN Card To connect either the U card to the ISDN line, or the S/T card to theNT1, (which in turn connects to the ISDN line), use the RJ-45 to RJ-45cables 3Com supplies with the each card.X.21 cable The network connector is a male 15-pin X.21 connector foraccess to modem or data service unit (CSU/DSU) interfaces.Table C-1 Types of Synchronous CablesCable Type DescriptionSLOT 2SLOT 1110-240 VAC50-60 Hz 1AUTPCONSOLEBNCBNC/AUI/TPEETHERNETAUIab4kbook Page 8 Thursday, March 27, 1997 11:51 AM