ADCP-75-169 • Issue 1 • June 2004

7.If the HU supports diversity, connect the diversity reverse path cable to the REVERSE 2 RF OUT connector on the HU front panel (see Figure 12).

8.Dress and secure cables at the HU.

9.Complete all remaining coaxial connections as specified in the system design plan.

4.7WDM Mounting Procedure (Accessory)

A bi-directional wavelength division multiplexer (WDM) module is available as an accessory item for the Digivance system. If the application does not require the use of a WDM system, skip this section and proceed to Section 4.8. The WDM mounts in a slot that is provided at the rear side of the HU.

Use the following procedure to install the WDM:

1.Remove the cover plate from the WDM mounting slot located on the rear side of the HU as shown in Figure 13.

2.Slide the WDM into the mounting slot.

3.Push inward on the two Push/Pull fasteners to secure the WDM to the HU.

4.Carefully coil up the two WDM pigtails to protect them from damage prior to connection to the HU optical ports.

19720-A

WDM MODULE

REMOVE COVER PLATE

FOR WDM MODULE

INSTALLATION

Figure 13. WDM Installation

4.8Optical Connections

The optical interface between the HU and the RU is supported by either two (non-diversity) or three (diversity) optical ports. Each optical port consists of an SC optical adapter which is mounted on the HU front panel. The PORT 1 port provides the optical connection for the forward path (downlink) signal. The PORT 2 port provide the optical connection for the reverse

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© 2004, ADC Telecommunications, Inc.