Cabling

The main issue with cabling (external to HYCAL) has been the over 1700 channels of delay cables needed for the HYCAL detectors. Delay cables were constructed using special order RG58 coaxial cable with a CL2 fire rating, non-contaminating jacket, and suplemental foil shield. Approximately 1/2 million feet of cable was purchased for this. The cables were cut to 400 ns lengths. Each channel was tested to be within 2ns of 400ns. The cables were soldered to custom designed printed circuit boards with connectors which could be mated directly to the LRS1881M ADC modules. The HYCAL end used a similar type of mass termination. The delay cables were produced in bundles ranging from 25 to 32 cables each. Work on these cable bundles was completed during the summer of 2003.