Voice Interface Cards Revised: 6/7/07, OL-12847-01 Overview Voice network modules convert telephone voice signals into a form that can be transmitted over an IP network, and have no connectors. Voice interface cards (VICs) provide the connection to the telephone equipment or network.
Voice Interface Cards Pinout and Cabling Specifications Warning To avoid electric shock, do not connect safety extra-low voltage (SELV) circuits to telephone-network voltage (TNV) circuits. LAN ports contain SELV circuits, and WAN ports contain TNV circuits. Some LAN and WAN ports both use RJ-45 connectors. Use caution when connecting cables. Warning To reduce the risk of fire, use only No. 26 AWG or larger telecommunication line cord.
Voice Interface Cards Foreign Exchange Station (FXS) Interface Cards Foreign Exchange Station (FXS) Interface Cards A Foreign Exchange Station (FXS) interface connects directly to a standard telephone, fax machine, or similar device. This interface supplies ringing voltage, dial tone, and so on to the station. The ports are shown in Figure 79, Figure 80, and Figure 81.
Voice Interface Cards Foreign Exchange Station (FXS) Interface Cards IS 89041 ! Figure 81 4-Port FXS/DID Card Front Panel (VIC-4FXS/DID) VIC 4FXS/DID 3 2 1 0 IN USE 65683 VIC22FXS 2-Port FXS Card Front Panel (VIC2-2FXS) IS Figure 80 Connecting FXS Cards Use a standard straight-through RJ-11 modular telephone cable to connect a VIC-2FXS, VIC-4FXS/DID, or VIC2-2FXS to a telephone or fax machine.
Voice Interface Cards Foreign Exchange Office (FXO) Interface Cards Figure 82 Connecting an FXS Card 1 IN USE VIC FXS IN USE RJ-11 ports SEE MANUAL BEFORE INSTAL LATION 0 41197 Straight-through RJ-11-to-RJ-11 cable Fax machine Step 3 Connect the other end of the cable to the RJ-11 port on the telephone or fax machine. Foreign Exchange Office (FXO) Interface Cards A Foreign Exchange Office (FXO) interface connects local calls to a central office or PBX.
Voice Interface Cards Foreign Exchange Office (FXO) Interface Cards For connections outside the building where the equipment is installed, the following ports must be connected through an approved network termination unit with integral circuit protection.
Voice Interface Cards Receive and Transmit (E&M) Interface Cards Connecting FXO Cards Use a straight-through RJ-11 cable to connect the FXO voice interface card to the PSTN or PBX through a telephone wall outlet. Note Step 1 Caution Step 2 Ports on this interface card are colored pink. Confirm that the router is still turned off.
Voice Interface Cards Receive and Transmit (E&M) Interface Cards IN USE 89039 VIC22E/M 0 2-Port E&M Card Front Panel (VIC2-2E/M) IE Figure 88 SEE MANUAL BEFORE INSTALLATION 41219 1 IE VIC E&M 2-Port E&M Card Front Panel (VIC-2E/M) IN USE Figure 87 Connecting E&M Interface Cards Use a straight-through RJ-48C cable to connect the E&M card to the PSTN or PBX through a telephone wall outlet. Caution Note Step 1 Caution Step 2 Do not connect an E&M interface directly to the PSTN.
Voice Interface Cards FXS, FXO, and E&M Interface Card LEDs Figure 89 Connecting the 2-Port E&M Card 1 IN USE VIC E&M IN USE RJ-48C ports SEE MANUAL BEFORE INSTAL LATION 0 41194 Straight-through RJ-48C-to-RJ-48C cable RJ-48C wall jack Step 3 Connect the other end of the cable to an RJ-48C wall outlet. FXS, FXO, and E&M Interface Card LEDs Each voice interface card has IN USE LEDs, one for each port.
Voice Interface Cards ISDN BRI Interface Cards The Cisco 1751 and Cisco 1760 routers, and the Cisco ICS 7750 platform support both ISDN BRI NT/TE voice interface cards. You can install these cards in any interface card slot in these platforms. These platforms do not support the ISDN BRI S/T voice interface card. The ISDN BRI NT/TE cards are illustrated in Figure 91 and Figure 92.
Voice Interface Cards ISDN BRI Interface Cards If you install any of the following configurations, the Cisco IOS software disables certain ports, as shown in Table 24: • An ISDN BRI voice interface card in a 1-slot voice network module (NM-1V) • Two ISDN BRI voice interface cards in a 2-slot voice network module (NM-2V) • One ISDN BRI voice interface card and one analog voice interface card (VIC-2FXS, VIC-2FXO, VIC-2FXO-EU, VIC-2FXO-M3, or VIC-2E/M) in a 2-slot voice network module (NM-2V) Table 24
Voice Interface Cards ISDN BRI Interface Cards Step 2 Connect one end of a straight-through RJ-45-to-RJ-45 cable to the RJ-45 port on the card. (See Figure 93.) Figure 93 Connecting the 2-Port ISDN BRI Card RJ-45 ports - R R R 4 trt-tro RJ-45-to-RJ-45 port Note When the interface is configured as NT and is connecting to a TE device, the cable must have the transmit and receive pins swapped (crossover cable). See Table 25.
Voice Interface Cards Analog Direct Inward Dial (DID) Interface Cards ISDN BRI Interface Card LEDs ISDN BRI voice interface cards have three LEDs, as listed in Table 26. Table 26 ISDN BRI Voice Interface Card LEDs LED Meaning B1 Call active on B1 channel B2 Call active on B2 channel OK Interface is connected to an ISDN network Analog Direct Inward Dial (DID) Interface Cards A Direct Inward Dial (DID) voice interface provides DID service to extensions on a PBX.
Voice Interface Cards Analog Direct Inward Dial (DID) Interface Cards Figure 95 4-Port Analog FXS/DID Voice Interface Card 3 2 1 0 65683 VIC 4FXS/DID IN USE Connecting an Analog DID Interface Card Use a standard straight-through RJ-11 modular telephone cable to connect the VIC-2DID or VIC-4FXS/DID interface card to a PSTN or PBX. Step 1 Caution Install the grounding lug on the router. See the hardware installation guide for your router for detailed instructions.
Voice Interface Cards Multiflex Trunk Interface Cards Step 4 Connect the other end of the cable to a telephone wall outlet or to a PBX. Multiflex Trunk Interface Cards Multiflex trunk interface cards support generic 1- or 2-port T1 or E1 trunk interfaces for voice, data, and integrated voice and data applications. These cards provide basic structured and unstructured service for T1 or E1 networks.
Voice Interface Cards Multiflex Trunk Interface Cards • 1-port E1 multiflex trunk interface card with G.703 support (VWIC2-1MFT-G703) • 2-port multiflex trunk interface card with G.703 support (VWIC2-2MFT-G703) Note The VWIC-1MFT-G703, VWIC2-1MFT-G703, VWIC-2MFT-G703 and VWIC2-2MFT-G703 interface cards allow unstructured E1 traffic that conforms to the ITU-T G.703 standard.
Voice Interface Cards Multiflex Trunk Interface Cards Multiflex Trunk Interface Card LEDs Multiflex trunk interface cards have three LEDs, which are shown in Figure 97 and Figure 98 and are described in Table 27. Table 27 Multiflex Trunk Interface Card LEDs LED Description Color LP LED A loopback or line state is detected or is manually set by the user. This LED is off during normal operation. Yellow AL LED A local or remote alarm state exists. This LED is off during normal operation.
Voice Interface Cards Centralized Automated Message Accounting Trunk Protocol Interface Cards Step 8 Check that the CD LED comes on, which means that the card’s internal DSU/CSU is communicating with the DSU/CSU at the T1 or E1 service provider central office. Centralized Automated Message Accounting Trunk Protocol Interface Cards The Centralized Automated Message Accounting (CAMA) trunk protocol interface connects local calls to emergency services.
Voice Interface Cards Related Documentation Figure 101 Connecting the 2-Port CAMA Card 1 IN USE VIC2CAMA IN USE RJ-11 ports SEE MANUAL BEFORE INSTAL LATION 0 62330 Straight-through RJ-11-to-RJ-11 cable RJ-11 wall jack Step 3 Connect the other end of the cable to the telephone wall outlet (RJ-11 port). Related Documentation Related documentation is available on Cisco.com or on the Product Documentation DVD.
Voice Interface Cards Related Documentation • Understanding and Troubleshooting Analog E & M Interface Types and Wiring Arrangements, tech note • Understanding and Troubleshooting Analog E&M Start Dial Supervision Signaling, tech note • E&M Cable Pinouts to Connect Cisco 1750/2600/3600 E&M VIC to Nortel PBX Option 11 E&M Trunk, tech note • E&M Cable Pinouts Connecting Cisco 1750/2600/3600 E&M VIC to Lucent PBX G3R E&M Trunk, tech note • Cisco Network Modules and Interface Cards Regulatory Complian
Voice Interface Cards Obtaining Documentation, Obtaining Support, and Security Guidelines Obtaining Documentation, Obtaining Support, and Security Guidelines For information on obtaining documentation, obtaining support, providing documentation feedback, security guidelines, and also recommended aliases and general Cisco documents, see the monthly What’s New in Cisco Product Documentation, which also lists all new and revised Cisco technical documentation, at: http://www.cisco.
Voice Interface Cards Obtaining Documentation, Obtaining Support, and Security Guidelines OL-12847-01 22
