PLATFORM INSTALLATION3-24 Edition One XC1000 Servicec. If a shielded ground is required, attach a grounding wire to W5.d. Bundle the wires connected to terminals W1, W2, W3, W4, and,if used, W5, and secure them in the cable clamp. Attach theclamp to the board with a number 8 screw.4. Connect the grounding wire (terminal W5) at both ends to comply withemission standards. Screw the adapter board securely to the backplane.5. Remove the static-grounding wrist strap.3.8 CONNECTING CABLES TO THE MAIN DISTRIBUTIONBOARDCables for the data-link ports, the switching control-center system (SCCS), theX.25, the external alarms, and the RDAC ports connect to the main distributionboard on cabinet 1. Make sure to connect the correct cable to the correctconnector on the distribution board. Figure 3-13 shows the main distributionboard with the pertinent connectors identified.CONNECTOR J25,J43 J44 J45 J46 J47 J48 J49 J50EXTERNAL ALARMSAND RDAC PORTCONNECTOR J43,RS–232 LINK 2CONNECTOR J44,CONNECTOR J46,CONNECTOR J47,X.25 CHANNEL 1CONNECTOR J48,X.25 CHANNEL 0CONNECTOR J49,SCCS DATA LINKCONNECTOR J50,TO SMTRS–232 LINK 1RS–232 LINK 3Figure 3-13. Data-Link, SCCS, X.25, External-Alarm,and RDAC Connections on the Main Distribution Board.SECTION 3.7 – 3.8
