Installation Instructions

Full Unit Replacement Procedures – continued

DEC 2000

9-23

SCt300 BTS Hardware Installation, ATP and FRU Procedures

PRELIMINARY

Install the replacement unit

Follow the steps in Table 9-15 to install the replacement unit.

Table 9-15: Install the New Unit

Step Action

1 Attach the installation handles to the replacement unit. Refer to the “Attaching Installation

Handles to Unit” procedure in Chapter 6.

2 Mount the replacement unit to the bracket. Refer to the “Attaching Unit to the Mounting

Bracket” procedure in Chapter 6.

3 Once the replacement unit has been secured to the mounting bracket, remove the installation

handles (reverse the installation order of the “Attaching Installation Handles to the Unit”

procedure in Chapter 6).

4 Attach the Site I/O junction box or environmental cover to the unit. Refer to the “Attaching the

Site I/O Junction Box to the Unit” procedure in Chapter 6 and Figure 9-4.

5 Attach the short duration battery (if present) to the unit. Refer to NO TAG in the “Short Duration

Battery Replacement Procedure” and Figure 9-7.

6 Connect the AC input cable. Refer to the “AC Power Cabling” procedure in Chapter 6.

7 Connect the DC input cable. Refer to the “DC Power Cabling” procedure in Chapter 6.

8 Connect the antenna cable(s). Refer to the “Antenna Cabling” procedure in Chapter 6.

9 Connect the MIB cables (if equipped). Refer to the “MIB Cabling” procedure in Chapter 6.

10 Connect the SU cables (if equipped). Refer to the “SU Cabling” procedure in Chapter 6.

11 Turn power on at the main power source (AC and/or DC).

12 If AC power is being supplied to the unit, close (push) the AC power breaker. The white collar on

the breaker is not visible when the breaker is closed.

13 If DC power is being supplied to the unit or if battery backup is present, close (push) the DC

power breaker. The white collar is not visible when the breaker is closed.

14 Perform the ATP, if necessary. Refer to the ATP procedures in Chapter 7.

15 Install the Solar Covers (if necessary).

16 Place the BTS back in service using the “Restore Signaling Operations” procedure in Table 9-3.