1-3
Cisco 1900 Series Hardware Installation
OL-19084-02
Chapter 1 Overview of the Router
Chassis Views
Figure 1-1shows 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
161718
2
14
7
8