1-5
Cisco 2900 Series and 3900 Series Hardware Installation Guide
OL-18712-02
Chapter 1 Overview of the Routers
Chassis Views
Figure 1-5
Back Panel of the Cisco 2911 Router
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
1
EHWIC slots
1
0, 1, 2, and 3 (0, Far right)
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
USB serial port
3
AUX
4
RJ-45 serial console port
5
10/100/1000 Ethernet port (GE0/0)
6
10/100/1000 Ethernet port (GE0/1)
7
10/100/1000 Ethernet port (GE0/2)
8
USB 0
9
USB 1
10
Ground
11
AC or DC or AC-POE Power Module
12
CompactFlash
2
0 and 1 (0, Right)
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
“Memory” section on page 1-22
. When legacy CF is inserted, the following error message
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.
13
Service module
3
slot 1
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.
ISM
PVDM1
PVDM0
EN
EN
S
L
S
L
USB
1
CONSOLE
AUX
GE 0/1
GE 0/2
G
E
0
/
0
0
DO NOT REMOVE DURING
NETWORKING OPERATION
DO NOT REMOVE DURING
NETWORKING OPERATION
250972
3
2
1
10
11
13
12
12
4
EHWIC 3
EHWIC 2
EHWIC 1
EHWIC 0
CF 1
CF 0
5
6
7
8
9
2911