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Cisco MWR 1941-DC-A Mobile Wireless Edge Router Hardware Installation Guide
OL-7872-04
Chapter 3 Installing the Cisco MWR 1941-DC-A Router
Network Modules and Interface Cards
Network Modules and Interface Cards
Cisco routers are normally shipped with the NM-2W network modules and the 2-port T1/E1-RAN
interface card already installed. If you need to remove or install any of these items, refer to the applicable
documents online.
For the NM-2W network modules:
•
Quick Start Guide: Network Modules for Cisco 2600 Series, Cisco 3600 Series, Cisco 3700 Series,
and Cisco MWR 1941-DC-A Routers
•
Cisco Network Modules Hardware Installation Guide
For the Cisco 2-port T1/E1-RAN interface card:
•
Cisco 2-port T1/E1-RAN Optimization Installation Instructions
Note
If NM-2W or Cisco 2-port T1/E1-RAN interface card needs to be removed or installed, we recommend
that you perform the installation or removal before you install the chassis.
If the required NM-2W network module or Cisco 2-port T1/E1-RAN interface card is already installed,
proceed to the next section
“Mounting the Cisco MWR 1941-DC-A Router”
.
Mounting the Cisco MWR 1941-DC-A Router
Each Cisco MWR 1941-DC-A router has rack-mounting brackets installed at the factory. If your router
did not come with the rack-mounting brackets installed, the rack-mounting bracket kit may have been
separately packaged with your router (see the
“Required Tools and Equipment” section on page 2-7
for
a description of the packaged hardware. You can only front (flush) mount the Cisco MWR 1941-DC-A
router in a 19-inch (48.3-cm) equipment rack that conforms to the EIA-310-D specification (the inside
width of the rack should be 17.72 to 17.80 inches [45 to 45.21 cm]). Mount the Cisco MWR 1941-DC-A
router to the brackets as described in the
“Attaching the Rack-Mounting Brackets” section on page 3-3
.
The rack-mounting brackets are slotted to allow the router to be mounted in racks with EIA 1.25-inch
(3.81-cm) or WECO 1.0-inch (2.54-cm) hole spacing. When installed in the rack, the
Cisco MWR 1941-DC-A router requires one EIA 1.75-inch (4.4-cm) vertical mounting space (or 1 rack
unit [RU]) for mounting (see the
“Mounting the Cisco MWR 1941-DC-A Router in a Rack” section on
page 3-4
).
Caution
Clearance in the front and rear of the Cisco MWR 1941-DC-A router must be allowed for cooling air to
be drawn in through the left and right front sides and circulated through the chassis and out the four fan
exhaust ports mounted on the rear of the chassis.
