Chapter 1
Overview of the Routers
1. LED goes off if the AC power fails or is disconnected. It does not go on and off with the power switch
2. RPS = Redundant Power Supply
3. PS = power supply
Figure 1-5
Back Panel of the Cisco 2911 Router
EHWIC 3
DO NOT REMOVE DURING
CF 1
NETWORKING OPERATION
12
1
1
EHWIC slots
0, 1, 2, and 3 (0, Far right)
3
AUX
5
10/100/1000 Ethernet port (GE0/0)
7
10/100/1000 Ethernet port (GE0/2)
9
USB 1
11 AC or DC or AC-POE Power Module
3
13 Service module
slot 1
1. Double-wide EHWICs can fit into slot 0 and 1, and into slot 2 and 3. EHWIC slots support HWIC, VIC, and WIC.
2. Only Advanced Capability CompactFlash (CF) purchased from Cisco operates in Cisco 2900 series and Cisco 3900 series ISRs. Legacy CF can impact
and several degrade performance in these routers. See the
appears:
WARNING: Unsupported compact flash detected. Use of this card during normal operation can impact and
severely degrade performance of the system. Please use supported compact flash cards only.
3. Service module slots support legacy network modules when inserted with an adapter. See the router product page at Cisco.com for a list of supported
modules.
OL-18712-02
1
EHWIC 2
DO NOT REMOVE DURING
ISM
PVDM1
PVDM0
CF 0
NETWORKING OPERATION
13
12
2
4
6
8
10 Ground
12 CompactFlash
"Memory" section on page
EHWIC 1
EHWIC 0
USB serial port
RJ-45 serial console port
10/100/1000 Ethernet port (GE0/1)
USB 0
2
0 and 1 (0, Right)
1-22. When legacy CF is inserted, the following error message
Cisco 2900 Series and 3900 Series Hardware Installation Guide
3
5
2
4
6
7
S
AUX
GE 0/2
G
S
L
E
0
/
0
1
USB
EN
EN
0
CONSOLE
GE 0/1
11
Chassis Views
9
8
L
2911
10
1-5