Chapter 12   FRU Replacement Procedures Gen 3 Site Controller System Manual
Gen 3 Site Controller Retrofit
12-6 68P80801E30-A   5/1/2002
 
11. Connect the yellow/green ground cables supplied to the M6 ground 
stud on each Gen 3 SC and the EAS/EAS2. Ensure the connection is 
tight. Connect the free end of each ground cable to one of the (3) 
ground cage nuts present in the rack which the previous modules had 
utilized. The ground cage nuts may need to be repositioned if the 
cable will not reach. Multiple lugs may not be installed onto a single 
nut.
12. Install the remaining cabling per Appendix C of the manual. In 
addition, new alarm cables have been provided to route from the 
punch blocks to the EAS/EAS2.
13. Reconnect any cabling coming into the rack at the junctional panel.
14. Reconnect the power to the rack by turning all applicable breakers 
on.
NOTICE:
Motorola recommends special attention to the following procedures for 
successful and safe installation of retrofit Gen 3 Site Controllers.
Note: The complete instructions and wiring diagrams for the retrofit are 
contained within this manual.
■ New Rails: The 6 new slide support rails (P/N 0783103X05) are narrower 
and allow easier access to the Gen 3 SC connections. The existing rails 
should be removed and replaced with these new rails.
■ Do this first: The new ground cables supplied should be connected prior 
to connecting power or any connections.
■ Common error: Ensure that the redundancy cable (P/N 3084225N24) 
used, is a redundancy cable. As a simple visual aid, the supplied 
redundancy cable has yellow bands near each end.
■ New Connection: Be sure to connect the 10/100 Base - T cable (P/N 
3082505Y12). It is located at the far right of the rear panels and runs 
between the two Gen 3 SCs. This high-speed interface is reserved for 
future use.