1-3
Cisco 1900 Series Hardware Installation
OL-19084-02
Chapter 1 Overview of the Router
Chassis Views
Figure 1-1
shows the front panel of the Cisco 1905 and Cisco 1921 router and LED names.
Figure 1-1
Front Panel of the Cisco 1905, and Cisco 1921 Router
Caution
Power off the PoE before installing an EHWIC in the Cisco 1905 and Cisco 1921 ISRs.
Figure 1-2
shows the back panel of the Cisco 1905 and Cisco 1921 with ports and LEDs.
Figure 1-2
Back Panel of the Cisco 1905 and Cisco 1921 Router (1921 shown)
1
SYS
2
ACT
3
PoE
12
1.Power over Ethernet (PoE) is available with optional external PoE power supply.
2.
Power off the PoE before installing an EHWIC in the Cisco 1905 and Cisco 1921 ISRs.
Cisco
1900 Series
SYS
ACT
POE
253707
1
2
3
1
EHWIC (HWIC, WIC, or VWIC
1
) slots 0
and 1—slot 0 (Right), slot 1 (Left), or
double wide
2345
1.
VWIC support is for data only.
2.
Double-wide slot on the 1921 only.
3.
The 1905 slot 0 (Right) comes with a permanently installed interface card. Only slot 1 (Left) is available.
2
EN (Enable RJ-45 console)
3
RJ-45 serial console port
4
AUX port
5
GE 0/1
6
GE 0/0
7
S (Speed)
8
L (Link)
9
USB port—USB 2.0 Type-A port
10
Kensington
TM
security slot
11
PoE
6
12
Ground connector
13
On/Off switch
14
Input power connection
15
Baud reset
16
USB serial port—USB 5-pin mini USB Type-B
17
EN (Enable USB console)
18
Flash
EN
EN
S
L
CONSOLE
AUX
GE 0/0
GE 0/1
POE
FLASH
Cisco
1921
RESET
EHWIC 1
EHWIC 0
S
L
BAUD
53VDC 1.5A
100-240 V~ 50-60 Hz 1A
253708
4
10
12
1
15
3
5
6
9
11
13
16
17
18
2
14
7
8
