Cisco 1601 Hardware Installation Guide - Page 84

ISDN BRI S/T Leased-Line WAN Interface Card ISDN BRI WAN Interface Cards ISDN BRI S/T Leased-Line WICs Overview The 1-port ISDN BRI S/T leased-line WIC (WIC-1B-S/T-LL) provides a single B channel operating in leased-line mode at 64-kbps. (See Figure 54.) Figure 54 WIC-1B-S/T-LL Front Panel ISDN BRI port 41216 BRI S/T LL SEE MANUAL BEFORE INSTALLATION B1 LED B2 LED OK LED ISDN BRI S/T Leased-Line WIC LEDs The ISDN BRI S/T leased-line WIC LEDs are shown in Figure 54. The functions of the LEDs are described in Table 11. Table 11 ISDN BRI S/T Leased-Line WIC LEDs LED Description B1 ISDN connection on B1 channel when blinking. B21 ISDN connection on B2 channel (not used). OK ISDN port has established a connection with the central office switch (D channel). 1. Always off for 64 kbps, which is available on B1 only. Prerequisites for Connecting an ISDN BRI S/T Leased-Line WIC to a Network Before connecting a WIC to the network, ensure that the WIC is installed in the router, the equipment is properly grounded, and you have the proper cables for connecting the WIC to the network. This section describes the preparation necessary before connecting an ISDN BRI U WIC to the network. Installing a Cisco ISDN BRI S/T WAN Interface Card Install the Cisco WIC according to the instructions in Installing Cisco Interface Cards in Cisco Access Routers. Grounding Ensure that the equipment you are working with is properly grounded. For instructions on grounding your WIC, refer to Installing Cisco Interface Cards in Cisco Access Routers. OL-12844-01 10