Black Box SERVSWITCH SW723A-R4 Bedienungsanleitung PDF herunterladen (Seite 7)

4-PORT EXPANSION BOARD FOR SERVSWITCH™ AND SERVSWITCH™ ULTRA

8. Unscrew and remove the nuts and washers from the screw-ends of the standoffs that

poke through the topmost PCB. There will definitely be two of these standoffs at the

front of the PCB; there might also be one on the narrow right-hand end. See Figure 2

on the previous page, Figure 4 on the next page, and Figure 5 on page 9.

9. Unscrew and remove the eight jack screws attached. to the Expansion Board, one on

either side of the Board’s four DB25 connectors. (These will secure the connectors to

the backplate; you will be screwing them back on soon.)

10. You should have received two or three new standoffs with your Expansion Board.

Screw these into the screw-ends of the existing standoffs that you exposed in step 8.

You should also have received an extender (spacer) for the J3 connector on the PCB

that will be below the Expansion Board (see Figure 2 on the previous page, Figure 4

on the next page, and Figure 5 on page 9); plug this extender into the J3 connector,

being careful not to bend the extender’s pins.

11. Plug the 4-Port Expansion Board into the J3 extender you just attached, being

extremely careful not to bend the Board’s pins (see Figure 2 on the previous page and

Figure 5 on page 9). The new standoffs’ screw-ends should poke through the

appropriate holes on the Board, and the Board’s DB25 connectors should fit in the

CPU-port slots you exposed in step 7.

12. Fasten the Board to the other PCBs by screwing the nuts and washers you removed

in step 8 onto the screw-ends of the new standoffs.

13. Fasten the Board to the back panel by screwing the jack screws you removed in step

9 back in. (See Figure 2 on the previous page.)

14. Make sure that port-numbering jumper J14 (see Figure 4 on the next page and Figure

5 on page 9) is set correctly on all of your unit’s “slave boards” (all the boards in the

PCB stack except the bottommost main board). On the second board from the

bottom, you’ll see that J14 has been removed to identify that board as the location of

ports 5 through 8. On the third board from the bottom, J14 should be set to the left to

identify that board as the location of ports 9 through 12. On the fourth board (if

you’ve installed one), J14 should be set to the right to identify that board as the

location of ports 13 through 16. If these jumpers aren’t set correctly, the Switch will

either access the wrong ports, access multiple ports simultaneously, or light LED 3

(“slave communication error”) at power-up.

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Black Box SERVSWITCH SW723A-R4 Bedienungsanleitung Seite 7