User's Manual

ADCP-75-348 • Issue 1 • 04/2008
Page 12
© 2008, ADC Telecommunications, Inc.
6.4 WDM Host Module Mounting Shelf and WDM Host Module Installation Procedure
A bi-directional wavelength division multiplexer (WDM) system is available as an accessory
item for the URH system. If the application does not require the use of a WDM system, skip this
section and proceed to
Section 6.5.
The WDM host module mounting shelf installs in the equipment rack with the HU. Each host
module mounting shelf can hold multiple modules and each host module can support two HU’s.
When multiple HU’s require connection to a WDM system, the host module mounting shelf and
the HU’s should be mounted in the equipment rack as shown in
Figure 8. This configuration
allows the pigtail leads from the two host modules to be connected directly to the optical ports
on any one of the four HU’s.
Figure 8. Typical WDM and HU Configuration
The WDM host module mounting shelf may be mounted in either a 19-inch or 23-inch EIA or
WECO equipment rack. Four #12-24 screws are provided for securing the mounting shelf to the
rack. Use the following procedure to install the WDM host module mounting shelf in the
equipment rack and to mount the WDM modules in the WDM host module mounting shelf:
WDM MOUNTING
SHELF
(WITHOUT MODULES)
22392-A
POWERWORX
FUSE PANEL
HOST UNITS
HOST SLACK FIBER STORAGE