GPS Field Replaceable Unit Module

This chapter contains the following sections:

Overview of the GPS FRU Module

The IR1833 and IR1835 have a slot for a dedicated GPS field-replaceable unit (FRU) module, which will be used in addition to the one integrated in the LTE module, for more accurate dead reckoning performance. The part number is IRM-GNSS-ADR.

The following figure shows a GPS FRU module.

Figure 1. GPS FRU Module

The IRM-GNSS-ADR hardware is capable of supporting various GNSS constellations. Cisco supports GPS only on this module with IOS XE release 17.7.1. Please inquire with your sales representative for a roadmap of support of additional constellations on the IRM-GNSS-ADR module.

Further details on the GPS capabilities can be found in the Cisco Catalyst IR1800 Rugged Series Router Software Configuration Guide.

Installation and Removal of a GPS FRU Module


Caution
The module is a FRU, but is not hot swappable. Make sure the device is powered down before replacing.

Procedure

Step 1

Remove the protective cover over the GPS slot by removing the two screws (1 ) using a Phillips driver, as shown in the following figure. Retain these two screws for further use.

Figure 2. GPS Slot Cover

1

Screws

Step 2

Insert the GPS FRU module into the slot in the device.

Figure 3. GPS Module Insertion

1

Screws

2

Screw holes

Step 3

Align the previously removed screws (1 ), with the screw holes (2 ), and tighten to 2-3 in-lb (0.2-0.3 Newton meter).

Step 4

The installation is now complete.

Step 5

To remove the module, reverse the steps:

  1. Power off the device.

  2. Remove the screws.

  3. Pull out the module.