This information is for all NWS sites that initially received Modification Note 45: INSTALLATION OF AN A/B SWITCH ON THE 56 KBPS DEDICATED AND THE 14.4 KBPS DEDICATED LINES, FROM THE RPG TO THE RPGOP AND AWIPS, issued on 11 November 1998.

Figure 3 has an error that makes the installation procedure confusing. Amendment 1 to Modification Note 45 corrects this problem and will be issued by March 31, 1999 to correct Figure 3.

If you desire to obtain corrected drawings prior to receipt of the amendment, you may access them through the ROC homepage at:

http://www.roc.noaa.gov/ssb/sysdoc/figure3.pdf

If you have any questions, please call the ROC System Documentation Section.