Cisco C921J-4P User Manual

SKUPower Supply
C921J-4P
C926-4P
C927-4P
C927-4PM
External
Do not hang the Power Supply Unit (PSU) from the power socket. Place it on a surface.
Note
Check the power at your site to ensure that you are receiving power that is free of spikes and noise. Install a
power conditioner if necessary
Note
Table 5: Power Requirements for Cisco 900 Series ISRs
Output RatedInput RatedSKU modelsPower Source
12VDC, 1.5A100-240V, 0.5A• C921J-4P18W AC External Power
Supply
(PWR-18W-AC(=))
12VDC, 2.5A100-240V, 1.0A• C926-4P
• C927-4P
• C927-4PM
30W AC External Power
Supply
(PWR-30W-AC(=))
Network Cabling Specifications
The following sections describe the cables and thee specifications required to install Cisco 900 Series ISRs:
Console Port Connections
The Cisco 900 ISR has both EIA/TIA-232 asynchronous (RJ-45) and USB2.0 compliant serial console ports.
The console ports do not have any hardware flow control. Shielded USB cables with properly terminated
shields are recommended.
EIA/TIA-232
Depending on the cable and the adapter used, this port appears as a DTE or DCE device at the end of the
cable.
Hardware Installation Guide for the Cisco 900 Series Integrated Services Router
13
Prepare for Router Installation
Network Cabling Specifications

Cisco C921J-4P Specifications

General

Brand	Cisco
Model	C921J-4P
Category	Network Router
Language	English