- Unpacking the Router
- Site Preparation and Installation Safety (Read before Installing)
- Hardware Features - Description and Specifications
- Mounting and Grounding the Router
- Making Power Connections
- Making Network and Other Connections
- Installing Connected Grid Modules
- Antennas
- About the SD Flash Memory Module
- LED Locations and States
- Appendix - Starting a Router Terminal or Console Session
- Appendix - Cable and Connector Specifications
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:
■Installing or Replacing Module Antennas
Router Antennas Overview
This section describes the antennas used with the router.
The router ships with two antennas that support router functionality:
The router also supports Connected Grid module antennas. For more information, see Connected Grid Module Antennas.
Figure 1 Router WiFi and GPS Antenna Locations
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GPS Antenna
The Connected Grid GPS Antenna kit (optional) includes the following items:
■GPS antenna with integrated 15-foot coaxial cable (see Figure 2)
■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.
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.
■For information about the GPS status LED, see Router LED Locations and States.
■For more information about the internal GPS module, see the Internal GPS Module.
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)
■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.
■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.
■For information about the WiFi status LED, see Router LED Locations and States.
■For more information about the WiFi short-range access point that provides the WiFi connection to the router, see WiFi Short-Range Access Point.
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
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
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Cable length: 15 feet (460.8 cm) |
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WiFi Antenna Specifications
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698 to 806 MHz |
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