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Chapter 2      Installing the Router
  Installing the Cisco 810 ISR
NoteDIN rail mounting is not supported on Cisco 819GW, Cisco 819HGW, and Cisco 819HWD ISRs. 
						

							 
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Chapter 2      Installing the Router
  Installing the Cisco 810 ISR
To attach the Cisco 819 ISR to a 35-mm wide DIN rail, follow these steps.
Step 1Attach the DIN rail to the back of the router using the three screws provided. (See Figure 2-27.) 
Figure 2-27 Attaching the DIN Rail to the Cisco 819 ISR
Step 2
Find the tab on the end of the DIN rail that extends past the router. (See Figure 2-28.) Press the tab in 
and slide the DIN rail out while the tab is pressed down.
Figure 2-28 DIN Rail Tab
Step 3
Turn the router sideways so that the antenna is at the top.
Step 4Position the rear edge of the router directly in front of the DIN rail, making sure that the DIN rail fits in 
the space between the latch and hook.
Step 5Position the router so that the hook on the DIN rail bracket hooks onto the top edge of the DIN rail. The 
weight of the product can rest on the hook temporarily while the DIN rail bracket latches are secured.
Step 6Push the DIN rail bracket latch up after the router is over the DIN rail to secure it. The router is now 
installed in the DIN rail. (See Figure 2-29.)
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  Installing the Cisco 810 ISR
Figure 2-29 Cisco 819 ISR Installed with the DIN Rail
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Chapter 2      Installing the Router
  Installing the Cisco 810 ISR
Installing the Router Using the Configurable Low Profile DIN Mount
If space is limited between the DIN rail and the enclosure cover, the Configurable Low Profile DIN 
Mount can be utilized to mount the router flat against the DIN rail. It can also be configured in three 
different ways to allow router cabling to exit from the bottom, right or left.
Figure 2-30 Configurable Low Profile DIN Mount standard configuration
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Chapter 2      Installing the Router
  Installing the Cisco 810 ISR
Configuring the Mount
Figure 2-31 Low Profile DIN Mount Configuration
The mount comes configured in a bottom cable exit position, with the rail latches in the slots marked 
Bottom. To reconfigure the mount:
1.Remove the two DIN Rail Latch Bracket Screws (Item 2).
2.Slide the DIN Rail Latch Brackets (Item 5) and DIN Rail Latch (Item 6) against the spring pressure, 
towards the edge of the tray and remove the bracket and latch assembly. Be careful not to lose the 
springs.
3.Remove the DIN Rail Latch Springs (Item 4)
4.Identify the desired mounting configuration and replace the latch assemblies in slots with the 
matching labels, using the reverse order of steps 1 through 3. 1Mount tray4DIN Rail Latch Springs
2DIN Rail Latch Bracket Screws5DIN Rail Brackets
3Mount Serial Number6DIN Rail Latch
2
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1
3
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Chapter 2      Installing the Router
  Installing the Cisco 810 ISR
Attaching the mount to the router
Figure 2-32 Cisco ISR 819 mounted in a Configurable Low Profile DIN mount
To attach the router to the mount:
1.Remove the bottom screw of the 3 screws on the sides of the router at the front.
2.Slip the router into the mount tray
3.Align the holes at the front sides of the mount with the vacant screw holes on the router and 
screw the mount to the router with the longer, 6-32 x .375 Philips/Pan Head screws with locking 
washer (Cisco 48-0422-01), which are included with the kit.
4.Remove the screw near the middle on the back of the router
5.Locate the “L” bracket that came with the mount, and screw the bracket to the router with the 
other 6-32 x .375 Philips/Pan Head screw and locking washer (Cisco 48-0422-01). 
6.Now screw the bracket to the mount with the shorter, supplied, 6-32 x .25 Philips/Pan Head 
screw and locking washer (Cisco 48-0421-01).
Attaching the Assembled Router and Configurable DIN Mount to the DIN Rail
Once the mount has been configured according to need, and the router has been attached to the mount, 
the assembly is ready to be snapped onto the DIN rail.
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Chapter 2      Installing the Router
  Installing the Cisco 810 ISR
Installing the Router Ground Connection
The router must be connected to a reliable earth ground. Install the ground wire in accordance with local 
electrical safety standards.
For NEC-compliant grounding, use size 14 AWG (2 mm2) or larger copper wire and a ring terminal 
with an inner diameter of 1/4 in. (5 to 7 mm).
For EN/IEC 60950-compliant grounding, use size 18 AWG (1 mm2) or larger copper wire.
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
To install the ground connection, follow these steps:
Step 1Strip one end of the ground wire to the length required for the terminal.
Step 2Crimp the ground wire to the ring terminal using the wire crimper.
Step 3If you choose to install the power switch lock, perform Step 5 to Step 7. Otherwise, perform Step 4, 
Step 6 and Step 7.
Step 4Attach the ring terminal to the chassis. Use the single screw provided. Tighten the screws to a torque of 
8 to 10 inch-pound (0.9 to 1.1 newton meter). (See Figure 2-33.)
Figure 2-33 Chassis Ground Connection Using Ring Terminal
Step 5
Install the power switch lock, see the “Installing the Power Switch Lock” section on page 2-39. Tighten 
the screws to a torque of 8 to 10 in-lb (0.9 to 1.1 N-m). Torque the hex standoff to the same torque.
Step 6Connect the other end of the ground wire to a known reliable earth ground point at your site.
Step 7If you are using this router in a vehicle, attach the ring terminal to the chassis using one of the screws 
provided and the green or green and yellow striped wire. Connect the other end of the wire to the vehicle 
ground.1Ring terminal
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  Installing the Cisco 810 ISR
After you install and properly ground the router, you can connect the power wiring, the LAN cables, and 
the cables for administrative access as required for your installation.
Installing the Power Cord Retention Lock
The Cisco 819 ISRs have a power cord retention mechanism as an accessory. It locks the power cord to 
the router so when a user accidentally pulls out the power cord, the power cord will not come out from 
the router. For the complete list of Cisco 819 ISRs that support power cord retention lock, see Ta b l e 1 - 7.
This section describes how to install the power cord retention lock.
Step 1Pre-assemble the o-ring onto the barrel of the power cord as shown in Figure 2-34.
Figure 2-34 Pre-assemble the O-Ring onto the Barrel
Step 2
Place the power cord lock onto the power cord behind the connector overmold as shown in Figure 2-35. 
Slide the power cord lock forward so that it captures the overmold and is fully seated.
Figure 2-35 Place the Power Cord Lock onto the Power Cord
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3
1O-ring3Power cord lock
2Power cord connector
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Chapter 2      Installing the Router
  Installing the Cisco 810 ISR
Step 3Install the power cord with power cord lock and the pre-installed o-ring to mate with the power jack on 
the router while making sure that the two arms of the power cord lock slide into the corresponding slots 
on the router and are fully seated with both arms locking into the slots as shown in Figure 2-36.
Figure 2-36 Installing Power Cord Lock onto the Router
Step 4
To remove the power cord lock, use your thumb and index fingers to squeeze ends of tabs while pulling 
away from the router. (See Figure 2-37.)
Figure 2-37 End of Tabs
Installing the Power Switch Lock
The Cisco 819 ISRs have a power switch lock as an accessory. The power switch lock prevents 
unauthorized access to a tampered proof router (for example, router in a bus). For the complete list of 
Cisco 819 ISRs that support power switch lock, see Ta b l e 1 - 7.
This section describes how to install the power switch lock.
Step 1Install the power switch lock by following the parts listed in Figure 2-38.
All these parts are in the accessory kit in their own bag. The ring terminal does not have to be installed.
Figure 2-39 shows the power switch lock installed.
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  Installing the Cisco 810 ISR
Figure 2-38 Installing Power Switch Lock
Figure 2-39 Power Switch Lock Installed
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2
3
4
5
1Ring terminal4Power switch lock
2Power switch lock washer5Pan-head screw 
3Power switch lock standoff
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