Cisco WS-C1912-A Hardware Installation Guide - Page 19
Back Panel of the Cisco 1905 and Cisco 1921 Router 1921 shown - switch
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253708 Chapter 1 Overview of the Router Chassis Views 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 EHWIC 1 FLASH 18 EHWIC 0 234 5 6 9 10 11 12 13 14 AUX S GE 0/1 L Cisco 1921 EN 17 16 EN CONSOLE S GE 0/0 L 78 POE BAUD RESET 53VDC 1.5A 15 100-240 V~ 50-60 Hz 1A EHWIC (HWIC, WIC, or VWIC1) slots 0 EN (Enable RJ-45 console) and 1-slot 0 (Right), slot 1 (Left), or 1 double wide2345 2 3 RJ-45 serial console port 4 AUX port 5 GE 0/1 7 S (Speed) 9 USB port-USB 2.0 Type-A port 11 PoE6 13 On/Off switch 6 GE 0/0 8 L (Link) 10 KensingtonTM security slot 12 Ground connector 14 Input power connection 15 Baud reset 17 EN (Enable USB console) 16 USB serial port-USB 5-pin mini USB Type-B 18 Flash 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. 4. Only 1 EHWIC Gigabit Ethernet Switch can be installed in a 1905 or 1921. 5. See Module Support on Cisco's Integrated Services Routers Generation 2 http://cisco.com/en/US/prod/collateral/routers/ps10538/aag_c07_563807.pdf for supported modules. 6. Power off the PoE before installing an EHWIC in the Cisco 1905 and Cisco 1921 ISRs. Figure 1-3 shows the front panel of a Cisco 1941 wireless router with antennas mounted. Note The Cisco 1905 comes with a permanently installed EHWIC in slot 0 (Right). OL-19084-02 Cisco 1900 Series Hardware Installation 1-3