Toshiba DK 16, DK8 manual Mounting the Expansion Key Service Unit

INSTALLATION-DK16 KSU & PCB

SECTION 100-816-205

MARCH 1993

4)Secure screws approximately two thirds of the way into the top two holes on the mounting surface.

5)Hang the unit from the top two screws and then secure the screws completely into the mounting surface.

6)Finish securing the unit to the mounting sur- face by completley screwing the bottom two screws into the wall.

7)Ground system according to Chapter 2, para- graph 4.

8)Connect applicable wiring (modular CO line cords, 25-pair amphenol connector cable, etc.) to the Base Key Service Unit and then fasten wiring to the unit with the tie wrap that comes with the base unit (Figure 5-4). Remove amphenol connector clamp from plastic bag that comes with the Base Unit. Fasten the clamp to hold the amphenol connector.

9)Connect Reserve batteries (per Paragraph 2.40) and plug battery cable into BATT con- nector of the KPSU16 power supply (Figure 5- 3 and 5-4).

10)Set the KCOU PAD switches (SW400-SW475) to the appropriate position (Figure 5-3). The factory setting is NORMAL. If CO lines are connected to a PBX or are in close proximity to the central office the PAD position may be required.

11)If the Expansion Key Service Unit is going to be installed, refer now to Paragraph 2.30. If not, proceed to Step 12.

12)Plug the AC power cable into an outlet and then turn ON the power supply switch.

13)Reinstall the front and side covers onto the Base Key Service Unit.

2.30Mounting the Expansion Key Service

Unit

1)Make sure the side cover is removed from the Base Key Service Unit. Turn Base Key Ser- vice Unit DC power switch off.

2)Set the Expansion Key Service Unit on the Base Key Service Unit's hinge mounts, mak- ing sure that the Expansion Unit sets properly in place (Figure 5-5).

3)Remove safety lock from plastic bag which comes with the Expansion Unit. Install safety lock to the Base Unit as shown in Figure 5-5.

4)Pull out on the safety lock until it can no longer be moved, securing the Expansion Key Ser- vice Unit to the Base Key Service Unit (Figure 5-5). Do not detach the lock from the Base Key Service Unit.

5)Connect the Expansion Key Service Unit Rib- bon Cable to the connector on the Base Key Service Unit (Figure 5-5). Close ribbon cable connector lock on Base Unit.

6)Connect Expansion Unit green/yellow ground wire plug (FG2) to TB1 of the Base Unit. (Make sure the plug locks on TB1.) See Figure 5-3 and 5-4.

7)Making sure that the Expansion Key Service Unit is flush against the mounting surface, mark the location of the Expansion Unit mount- ing screw hole (Figure 5-6).

8)Swing the Expansion Key Service Unit away from the mounting surface, and drill a hole at the mark made in Step 7.

9)Install applicable printed circuit boards (PCBs) (see Chapter 5, Section II)—after PCBs are installed, slide the slot lock to the lock position (Figure 5-7).

10)Swing the Expansion Key Service Unit back to the mounting surface and secure it to the surface with a screw.

11)Connect applicable wiring (modular CO line cords, 25-pair amphenol connector, etc.) to the PCBs (Figure 5-8).

12)Fasten the wiring with tie wraps (supplied) to the bottom of the Expansion and Base Key Service Units (Figure 5-8).

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