Cisco Firepower 1120 User manual

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Cisco Systems, Inc. www.cisco.com
About Connected Grid Antennas
This section describes the Cisco 1120 Connected Grid Router antennas, and describes how to find product and
installation information for all Cisco Connected Grid antennas. This chapter includes these sections:
Router Antennas Overview, page 71
Installing or Replacing Module Antennas, page 74
Antenna Specifications, page 75
Router Antennas Overview
This section describes the antennas used with the router.
Router Antennas
The router ships with two antennas that support router functionality:
GPS Antenna, page 72
WiFi Antenna, page 73
Module Antennas
The router also supports Connected Grid module antennas. For more information, see Connected Grid Module Antennas,
page 74.

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Figure 1 Router WiFi and GPS Antenna Locations
GPS Antenna
The Connected Grid GPS Antenna kit (optional) includes the following items:
GPS antenna with integrated 15-foot coaxial cable (see Figure 2 on page 73)
Male QMA connector adapter, to connect the cable to the router GPS antenna port
Hardware required to mount the antenna, for example on the substation or utility cabinet exterior
This antenna provides connectivity to the GPS system, from which the router derives precise time and location
information while operating on the network.
GPS Antenna Information
Caution: If the antenna is mounted outside, the antenna assembly must be grounded either at the bracket or at the
external building point where the cabling enters the building. This is critical because if it’s not grounded, the CGR 1120
chassis would be isolated on the antenna card very close to AC isolation requirements. Also see Statement 1052 below.
Warning: Do not locate the outdoor antenna near overhead power lines or other electric light or power circuits, or
where it can come into contact with such circuits. When installing the antenna, take extreme care not to come into
contact with such circuits, as they may cause serious injury or death. For proper installation and grounding of the
antenna, please refer to national and local codes (for example, U.S.:NFPA 70, National Electrical Code, Article 810,
Canada:Canadian Electrical Code, Section 54). Statement 1052
The GPS antenna is a field-replaceable component.
For detailed technical information about the GPS antenna, see GPS Antenna Specifications, page 75.
For information about the GPS status LED, see Router LED Locations and States, page 83.
For more information about the internal GPS module, see the Internal GPS Module, page 29.
1WiFi antenna port
2GPS antenna port
302342
1 2

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Figure 2 GPS Antenna with Mounting Hardware and Male QMA Adapter
WiFi Antenna
The Connected Grid 4GE LTE WiFi antenna kit (optional) includes the following items:
4G LTE indoor swivel-mount antenna (see Figure 3 on page 74)
Male QMA connector adapter, to connect the antenna to the router WiFi antenna port
The WiFi antenna provides connectivity to the router internal short-range access point.
The short-range access point enables a WiFi link so users can connect to the router from anywhere within WiFi range.
For example, a technician can check the status of the router from outside the substation or utility cabinet by connecting
to the router over the WiFi link.
WiFi Antenna Information
The Cisco order number of the WiFi antenna kit is: ANT-4G-DP-IN-TNC.
The WiFi antenna is a field-replaceable component.
For detailed technical information about the WiFi antenna, see WiFi Antenna Specifications, page 76.
For information about the WiFi status LED, see Router LED Locations and States, page 83.
For more information about the WiFi short-range access point that provides the WiFi connection to the router, see
WiFi Short-Range Access Point, page 30.
302332
RESET
SPD
EN
SFP 0/1
SPD
EN
SFP 0/0
GE 0/1 GE 0/0
FE 0/5 FE 0/4
FE 0/3 FE 0/2
FE 0/1 FE 0/0
ALARM
OUT 1
IN 4 IN 3 IN 2 IN 1
GPS
WIFI
ACT
SYS
ALARM
CONSOLE
POWER
PE N L3 L2 L1 +
-
1 2

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Figure 3 4G LTE WiFi Antenna and Male QMA Adapter
Connected Grid Module Antennas
In addition to the two fixed antennas (GPS and WiFi), the router supports additional antennas that provide connectivity
to the Connected Grid modules installed in the router.
The router supports up to two Cisco Connected Grid modules.Each module requires one antenna or two antennas (one
main antenna and one diversity antenna). The total number of antennas installed with the router depends on:
Number of modules installed in the router.
Module types that are installed in the router
For detailed information about the Connected Grid module antennas, see the Connected Grid antennas documentation,
at: www.cisco.com/go/cg-modules
Installing or Replacing Module Antennas
Depending on the configuration you specified, the router could arrive in the shipping container with all required antennas
already installed and connected to the corresponding Cisco Connected Grid modules, also installed in the router.
However, you might need to install an antenna when:
You purchase a module separately from the router. The antenna is included with the module, and must be installed
on the router to complete the module installation.
You purchase an antenna separately to replace a faulty or damaged antenna.
The antenna form factor prevents requires that it be installed after the router has shipped.
Where to Find Antenna Installation Information
For instructions on how to install or replace antennas on the router, see the Cisco Connected Grid antenna
documentation on Cisco.com, at: www.cisco.com/go/cg-modules
Table 1 Connected Grid Modules for CGR 1000 Series Routers Documentation
Title Description
Cisco Connected Grid Antennas Installation Guide Installation procedures and safety information for all models of
Cisco Connected Grid antennas.
Cisco Connected Grid Antennas Overview An overview of antenna technology, antenna types, and
Cisco Connected Grid antennas and accessories.

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Antenna Specifications
This section contains specifications for the fixed antennas that ship with the router.
For all technical details and specification for these and other Cisco Connected Grid antennas, see the
Cisco Connected Grid antenna documentation on Cisco.com at: www.cisco.com/go/cg-modules
GPS Antenna Specifications
Choosing Your Cisco Connected Grid Antenna A decision tree to help you choose the correct antennas for your
platform and physical environment.
Table 1 Connected Grid Modules for CGR 1000 Series Routers Documentation (continued)
Title Description
Specification Value
Dimensions Cable length: 15 feet (460.8 cm)
Diameter of antenna rodome: 1.97 inches (50 cm)
Connector (cable to router) TNC male
Frequency 1575.42 MHz +/-5MHz
Nominal Impedance 50 Ohms nominal
VSWR 2.0 Max. in band
Peak Gain 4.0 dBi min. @ zenith
Minimum Gain 1 dBi @ 10 degrees elevation
Pattern Type Hemispherical
Polarization Circular RHCP
LNA Gain 26 dB +/-2 dB
DC Voltage: 3–5VDC
Out of Band Attenuation 20 dB min. at 1575+ / -50MHz
Max. Input Power 20 mA max @ 3.3VDC +/-.3VDC
Operating Temperature -40° C to +85° C
IP Code Rating IP67 (Outdoor use)
Wind Speed Rating 165 MPH
Compliance RoHS

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WiFi Antenna Specifications
Specification Value
Dimensions 9.0 x 1.2 x 0.6 inches (229 x 30.5 x 15 mm)
Weight 1.73 ounces (49 grams)
Connector TNC male
Frequency 698 to 806 MHz
824 to 894 MHz
880 to 960 MHz
1710 to 1880 MHz
1850 to 1990 MHz
1920 to 2170MHz
2100 to 2500 MHz
2500 to 2690 MHz
Nominal Impedance 50 ohms
VSWR < 2.5:1
Peak Gain 0.5 dBi (698-960 MHz)
2.2 dBi (1710-2700 MHz)
Average Efficiency 55% (698-960 MHz)
73% (1710- 2700 MHz)
Polarization Linear
Max. Input Power 3W
Operating Temperature -35° C to +70° C
Compliance RoHS