Multi-Tech Systems Hub manual Board Removal and Replacement, Removing SBC Board

Chapter 4 - Hardware removal/Replacement

Board Removal and Replacement

Removing SBC Board

1Remove the CommPlete 4000 from rack enclosure (two people are needed). Follow the procedure “Disconnecting Cables and Removal from Enclosure” presented above. Summary: after powering down the unit and disconnecting all power and signal cables, employ two persons to remove its rack-mounting screws and lift the unit out of the rack.

2Remove the top cover from the CommPlete 4000 by removing the seven cover mounting screws located in the back of the CommPlete 4000. (See Figure 4-3.)

3Disconnect the four ribbon cables from the SBC. (See Figure 4-6.) Depending on

your configuration, you may not have all four ports in use.

COMB1 PKM1

COMA1		VGAA1
SC2T2	LANB1		KCN1
SC2T1 IRDA1		SM1
LNB1			KBPW1	SBVB1
PLRS1
				ATXD1
FDCA1
LPTA1

IDEB2
USBF2
IDEB1
USBF1	South
FAN1	Bridge	PSW1
	SLVA1	SCF1

CMOS1

VLCD1

North

Bridge

DIMMA3

DIMMA2

DIMMA1

CPU

FAN2

LVDSE1

Figure 4-6. SBC Board and Ribbon Cable Connectors

4Remove the fanned heatsink from the processor or disconnect the power connector for the fanned heatsink.

5Remove the screw that secures the SBC board to the chassis at the back of the CommPlete 4000.

6Remove the SBC board from the midplane.

7To replace the SBC board, verify SBC board configuration. Refer to the Hardware Configuration and Installation instructions in the SBC manual.

8Install the new SBC board by following steps 1-5 in reverse order and sense. That is,

a.Attach SBC to its midplane socket.

b.Secure SBC to rear of chassis with screw.

c.Re-connect ribbon cables and fanned heatsink.

d.Replace top cover (7 screws).

e.(Two people are needed.) Replace CommPlete 4000 into rack enclosure.

CommPlete 4000 Communications Server User Guide 21