Labels:text | screenshot | diagram | font | number | map OCR: THE ARGONNE ISDN NETWORK Laboratory host site Gandalf PRI 52421. ( RJ-45 jack 23 64Kbps channels Workstation T-1 ISDN CSUI CO BR RJ-45 jack Remote employee CO Switch Network BRI 2 64Kbps locations Gandalf channels Xpressway ISON gateway RJ-45 jack BR Gandalf 52421 Router Workstation Figure 1. ISDN figures prominently into Argonne National Laboratories' telecommunting program, which gives researchers access to bandwidth-consuming files and applications.