User's Manual

Attaching the Site I/O Junction Box to the Unit

JAN 2002

6-13

SC300 1X BTS Hardware Installation, ATP, and FRU Procedures

DRAFT

Objective

The objective of this procedure is to attach the Site I/O junction box to

the unit. The location for the Site I/O junction box is shown in

Figure 6-9.

If you do not mount a Site I/O Junction box to a unit, leave the installed

Site I/O caps on the Site I/O Junction box connectors.

Required Tools and Materials

The following tools and materials are necessary to do this procedure:

 Torque driver wrench, 1/4–in. hex female drive, 0–10 N–M

 T30 Torx tamper bit

 Site I/O Junction box

Procedure to Attach the Site

I/O Junction Box to the Unit

Follow the procedure below to attach the site I/O junction box to the

unit.

Table 6-7: Procedure to Attach the Site I/O Junction Box to the Unit

Step Action

1 Use a T30 TORX bit to remove Site I/O Cap from the Site I/O connector.

NOTE

Save Site I/O Cap for future use.

2 Remove the Site I/O Plate from the Site I/O Junction Box.

3 Attach the straight end of the Y–ground cable (cable L) or the Site I/O ground cable (cable B) to

the site I/O junction box. Use one M6x19 tamper–resistant screw. Torque to 5.0 N–m.

NOTE

The free end of the Site I/O junction box cable should be connected to the customer–supplied Site

I/O interface.

4 The free end of the Site I/O junction box cable should be connected to the customer–supplied Site

I/O interface or to the Primary Surge Suppressor.

5 Position the Site I/O junction box as shown in Figure 6-9.

6 Insert the Site I/O junction box on to the housing, using the alignment feature on the housing.

7 Use a T30 Torx tamper bit to tighten (but do not torque) the upper tamper resistant screw.

8 Tighten but do not torque the lower tamper resistant screw.

9 Use a T30 Torx tamper bit to torque the upper and lower screw to 5 N–m.