Have you enabled SMDR through programming on the 2nd system? Once you have it enabled you will only get long distance info unless you program it for local calls as well, according to the manual. Also, just to make sure you have a good cable from the rs232 port to whatever device you are using, take the cable from the 1st cabinet's rs232 port and use it for the 2nd cabinet. I have had problems with these cables before. I believe troubleshooting the problem is the only way to get it to work. You also have a secondary port you can use if the 1st port is bad, although I have never found a bad rs232 port on these KSU's. I have installed hundreds of these systems.
We all need a little help once in awhile. Tony the Phoneman..