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Chapter 2      Installing the Router
  Installing the Cisco 810 ISR
Items Shipped with your Router
Unpack the box and verify that all items listed on the invoice were shipped with the Cisco 819 ISR.
The following items are shipped with your router:
AC power supply (default)
AC power supply cable (default)
Cisco Configuration Professional (Cisco CP) CD
DC power supply (optional)
Power cord retention lock (available in Cisco 819HGW, Cisco 819HWD, Cisco 819HG-4G, and 
Cisco 819G-4G ISRs only)
Power switch lock (available in Cisco 819HGW, Cisco 819HWD, and Cisco 819HG-4G ISRs only)
RJ-45-to-DB-9 console cable.
Straight-through RJ-45 Ethernet cable
Two cellular multiband swivel mount dipole antennas
Three WiFi antennas for Cisco 819HGW and Cisco 819HWD ISRs
NoteAC or DC Power supply is included based on the your order.
Additional Items
The following items are not shipped with the router but are required for installation:
ESD-preventive cord and wrist strap.
Screws for mounting the router on a wall.
Two number-10 wood screws (round- or pan-head) with number-10 washers or two number-10 
washer-head screws, for mounting on a wall stud. The screws must be long enough to penetrate at 
least 3/4 inch (20 mm) into the supporting wood or metal wall stud.
Two number-10 wall anchors with washers, for mounting the router on a hollow wall.
Wire crimper for chassis grounding.
Wire for connecting the chassis to an earth ground.
AWG 14 (2 mm2) or larger wire for NEC-compliant chassis grounding.
AWG 18 (1 mm2) or larger wire for EN/IEC 60950–compliant chassis grounding.
Ring terminal with an inner diameter of 1/4 inch. (5 to 7 mm) for NEC-compliant chassis grounding. 
Ring terminal used for grounding needs to be listed and suitable for 14 to 18AWG. Lock washer 
needs to be added to ring terminal ground installation when not using power switch lock.
Ethernet cables for connecting to the Fast Ethernet (FE) WAN and LAN ports.
Connections
Obtain a broadband or Ethernet connection from your service provider. 
						

							 
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Chapter 2      Installing the Router
  Installing the Cisco 810 ISR
Ethernet Devices
Identify the Ethernet devices that you will connect to the router: hub, servers, and workstations or PCs. 
Ensure that each device has a network interface card (NIC) for connecting to Ethernet ports.
If you plan to configure the software using Cisco IOS commands through the console port, provide an 
ASCII terminal or a PC that is running terminal emulation software to connect to the console port.
If you plan to connect a modem, provide the modem and modem cable.
Installing the Router
This section describes how to install the Cisco 819 ISR. These routers can be installed on a table top or 
other flat horizontal surface mounted on a wall or DIN rail.
The recommended clearance when horizontally mounted is 1.5 inches on both sides for floor mount 
bracket clearance and 2 inches on top. Top clearance is not required but stacking heat-dissipating objects 
on top of the router is not allowed. I/O side clearance is needed as it is required to access the cable 
connections. Clearance is not required on the backside (opposite side from I/O face) unless DIN rail 
mounting is required. Clearance is required to attach and mount the DIN rail bracket. The same 
clearances apply when mounted vertically.
This section also describes how to attach external antennas to the routers and contains the following 
topics:
Warnings, page 2-22
Accessing the SIM Card, page 2-23
Installing Antennas, page 2-27
Installing a WiFi External Antenna, page 2-28
Installing on a Table, page 2-29
Mounting on a Wall, page 2-29
Installing a DIN Rail, page 2-30
Installing the Router Using the Configurable Low Profile DIN Mount, page 2-34
Installing the Power Cord Retention Lock, page 2-38
Installing the Power Switch Lock, page 2-39
Warnings
WarningThis equipment needs to be grounded. Use a green and yellow 14 to 18 AWG ground wire to connect 
the host to earth ground during normal use. Statement 242
WarningThis equipment must be grounded. Never defeat the ground conductor or operate the equipment in the 
absence of a suitably installed ground conductor. Contact the appropriate electrical inspection 
authority or an electrician if you are uncertain that suitable grounding is available. Statement 1024 
						

							 
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Chapter 2      Installing the Router
  Installing the Cisco 810 ISR
WarningRead the wall-mounting instructions carefully before beginning installation. Failure to use the 
correct hardware or to follow the correct procedures could result in a hazardous situation to people 
and damage to the system. Statement 378
WarningDo not cover or obstruct the router vents located on both sides of the router; otherwise, overheating 
could occur and cause damage to the router.
WarningDo not place anything on top of the router that weighs more than 10 pounds (4.5 kilograms), and do not 
stack routers on a desktop. Excessive weight on top of the router could damage the chassis.
WarningDo not install the router or power supplies next to a heat source of any kind, including heating vents.
WarningThe intra-building port(s) of the equipment or subassembly is suitable for connection to intra-building 
or unexposed wiring or cabling only. The intra-building port(s) of the equipment or subassembly 
MUST NOT metallically connect to interfaces that connect to the OSP or its wiring. These interfaces 
are designed for use as intra-building interfaces only (Type 2 or Type 4 ports as described in 
GR-1089-CORE, Issue 5) and require isolation from the exposed OSP cabling. The addition of Primary 
Protectors is not sufficient protection in order to connect these interfaces metallically to OSP wiring. 
WarningThe intra-building port(s) (list the port or ports) of the equipment or subassembly must use shielded 
intra-building cabling/wiring that is grounded at both ends.
Accessing the SIM Card
This section describes how to install and replace the SIM card. Ensure that the router is not mounted to 
a wall, floor, or DIN rail.
CautionDo not touch any part of the exposed PCB circuit area when the SIM cover is removed.
WarningHot surface. Statement 1079
To access the SIM card in the Cisco 819 ISR, follow these steps:
Step 1Power off the router and disconnect the power cable from the power source.
Step 2Place the router on its side and ensure that any installed antennas are carefully oriented.
Step 3Remove the SIM access panel using four flat head #6 screws. (See Figure 2-18.) 
						

							 
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Chapter 2      Installing the Router
  Installing the Cisco 810 ISR
Figure 2-18 Accessing the SIM Cards
Step 4
To open the SIM socket cover, slide the cover in the direction of the open arrow. (See Figure 2-19.) 
Figure 2-19 Opening the SIM Socket Cover
Step 5
Gently lift the cover on its hinges. (See Figure 2-20.)
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Chapter 2      Installing the Router
  Installing the Cisco 810 ISR
Figure 2-20 Lifting the Socket Cover
Step 6
Slide the SIM card into the slot in the cover. Gently push down the cover to close. The SIM card will 
come in contact with the metal contacts in the socket. (See Figure 2-21.)
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  Installing the Cisco 810 ISR
Figure 2-21 Sliding the SIM Card into the Slot
Step 7
To lock the cover, slide it in the direction of the lock arrow. (See Figure 2-22.)
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Chapter 2      Installing the Router
  Installing the Cisco 810 ISR
Figure 2-22 Locking the SIM Socket Cover
Step 8
Replace the panel and the screws.
Installing Antennas
NoteBefore you install the Cisco 819 ISR on a table, wall, or DIN rail, install the antennas on the front panel. 
It is difficult to install the antennas after the router is installed.
To attach the radio antennas to your wireless router, follow these steps:
Step 1Manually screw the antenna tight to the TNC connectors on the back of the router. (See Figure 2-23.)
Figure 2-23 Installing the Antenna
Step 2
Orient the antennas. For optimum wireless performance, antennas should be generally perpendicular to 
each other.
If the router is being mounted on a desk, orient the antennas straight up.
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Chapter 2      Installing the Router
  Installing the Cisco 810 ISR
Installing a WiFi External Antenna
This section describes how to install a WiFi external antenna.
Step 1Install the lightning arrestor. For details in installing lightning arrestor, see Cisco Aironet Lightning 
Arrestor (AIR-ACC245LA-R). The lightning arrestor for cellular(3G/4G/LTE) is CGR-LA-NM-NF or 
CGR-LA-NF-NF. For detailed antenna information, see Ta b l e 1 - 1 3 and Ta b l e 1 - 1 5.
Step 2Rotate the knurled portion of the WiFi external antenna clockwise to screw the antenna to the RP-TNC. 
(See Figure 2-24.)
NoteWiFi antennas should be generally perpendicular to each other to achieve best coverage.
Figure 2-24 Cisco WiFi Antenna Assembly
2
3
1
344030
13G/4G Dipole External Antenna3RP-TNC Connector
2WiFi 2.4/5 Ghz Dipole External Antenna 
						

							 
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Chapter 2      Installing the Router
  Installing the Cisco 810 ISR
Installing on a Table
To install the router on a table or other flat horizontal surface, firmly place the router on a table or other 
horizontal surface. Keep at least 1 inch (2.5 centimeters) of clear space for heat dissipation.
Connect the chassis to a reliable earth ground. For the chassis ground connection procedures, see the 
“Installing the Router Using the Configurable Low Profile DIN Mount” section on page 2-34.
Mounting on a Wall
The Cisco 819 ISR has mounting holes on the bottom of the chassis for mounting the unit on a wall or 
other vertical surface.
TipWhen choosing a location for wall-mounting the router, consider cable limitations and wall structure.
To mount the router on a wall, follow these steps:
Step 1Remove the screws on the sides of the routers.
Step 2Attach the standard brackets to the chassis using the three screws provided for each bracket. (See 
Figure 2-25.)
Figure 2-25 Attaching the Standard Brackets
Step 3
Install the router to a wall stud using two number-10 wood screws, round- or pan-head, with number-10 
washers or two number-10 washer-head screws. The screws must be long enough to penetrate at least 1.0 
inch (25.4 mm) into the supporting wood or metal wall stud. (See Figure 2-26.) Tighten the screws to a 
torque of 6 to 8 inch-pound.
NoteThe orientation of the Cisco 819 ISR products is critical when wall-mounting. The router must 
be oriented as shown in Figure 2-26 with the left side of the router rotated up (as viewed from 
the IO side) to comply with IP41 and safety criteria. No other wall mounting orientation is 
supported.
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  Installing the Cisco 810 ISR
NoteThe mounting brackets (PID number ACS-810-FWM) are not included in the package of C819G series 
routers.
Figure 2-26 Installing the Router to the Wall
NoteFor hollow-wall mounting, each bracket requires two wall anchors with washers. Wall anchors and 
washers must be size number 10.
Step 4Route the cables so that they do not put a strain on the connectors or mounting hardware.
To comply with IP 41, cables should be routed down relative to the router to prevent water from 
travelling on the cables.
Installing a DIN Rail
You can use either the 7.5-mm or the 15-mm thick DIN rail for the Cisco 819 ISR. Secure the DIN rail 
to the mounting surface approximately every 7.8 inches (200 mm) and use end-anchors appropriately.
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