Cisco VIC-2FXS - 3600 Voice Interface Card-Fxs 2600/3600, Voice Interface Card Connection Manual
Connecting Voice Interface Cards to the Network
Revised: 11/07/2009, OL-12847-01
This document describes how to connect Cisco voice interface cards to your network. It contains the
following sections:
• Grounding Requirements for Voice Interface Cards, page 1
• Foreign Exchange Station (FXS) Interface Cards, page 3
• Foreign Exchange Office (FXO) Interface Cards, page 5
• Receive and Transmit (E&M) Interface Cards, page 8
• FXS, FXO, and E&M Interface Card LEDs, page 9
• ISDN BRI Interface Cards, page 9
• Analog Direct Inward Dial (DID) Interface Cards, page 13
• Multiflex Trunk Interface Cards, page 15
• Centralized Automated Message Accounting Trunk Protocol Interface Cards, page 18
• Related Documentation, page 19
• Obtaining Documentation, Obtaining Support, and Security Guidelines, page 21
Grounding Requirements for Voice Interface Cards
This section tells where to find instructions on how to properly ground voice interface cards on the
following platforms:
• Cisco 1700 Series Routers
• Cisco 2600 Series, Cisco 3600 Series, and Cisco 3700 Series Routers
• Cisco ICS 7750
Warning
Warning
Do not work on the system or connect or disconnect cables during periods of lightning activity.
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.
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Pinout and Cabling Specifications
Connecting Voice Interface Cards to the Network
Warning
Warning
To reduce the risk of fire, use only No. 26 AWG or larger telecommunication line cord.
Hazardous network voltages are present in WAN ports regardless of whether power to the unit is OFF
or ON. To avoid electric shock, use caution when working near WAN ports. When detaching cables,
detach the end away from the unit first.
Cisco 1700 Series Routers
Grounding on a Cisco 1700 series router is done on the router chassis itself, not on the voice interface
cards. For information on chassis grounding on Cisco 1700 series routers, see the hardware installation
guide for your router.
Cisco 2600 Series, Cisco 3600 Series, and Cisco 3700 Series Routers
The requirements in this section apply to only the Cisco 2600 series, Cisco 3600 series, and Cisco 3700
series routers.
The cards in this chapter are suitable for exposed plant lead connection. However, the host router chassis
must have a permanent protective earth connection before you connect a voice interface card to an
exposed plant lead. Make sure that a permanent earth connection is in place before installing the card.
If you find that a router chassis does not have an earth connection and you do not have a grounding kit,
take one of the following actions:
• Order and install a NEBS Level 3/ETSI Compliance Kit.
• Install an equivalent permanent protective earth connection, using the method described in the
installation guide Installing the Grounding Lug on Cisco 2600 and Cisco 3600 Series Routers.
Cisco ICS 7750
The Cisco ICS 7750 chassis has a grounding lug that needs to be properly connected using a green and
yellow 14 American Wire Gauge (AWG) grounding wire. See the “Installing the Cisco ICS 7750”
chapter in the Cisco ICS 7750 Installation and Configuration Guide for your software release at:
http://www.cisco.com/en/US/products/hw/voiceapp/ps967/prod_installation_guides_list.html
Pinout and Cabling Specifications
Note See Cisco Modular Access Router Specifications for network-end connectors and pinouts of the cables
connecting voice cards. Look under the type of interface card.
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Connecting Voice Interface Cards to the Network
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 1, Figure 2, and Figure 3.
Caution To comply with the Telcordia GR-1089 NEBS standard for electromagnetic compatibility and safety,
connect the 2-port FXS cards (VIC-2FXS and VIC2-2FXS) and 4-port FXS/DID cards (VIC-4FXS/DID)
only to intrabuilding or non-exposed wiring or cabling. The intrabuilding cable must be shielded and the
shield must be grounded at both ends.
Note Each port on the 4-port FXS/DID VIC can be configured as either Foreign Exchange Station (FXS) or
Direct Inward Dial (DID) when it is used with phones with a Ringer Equivalence Number (REN) load
of 1 or less.
If the REN load on any port is greater than 1, all four ports must be configured as either FXS or DID.
For information about using analog DID with the 4-port FXS/DID VIC, see the “Analog Direct Inward
Dial (DID) Interface Cards” section on page 13.
Note Cisco 2600XM series, Cisco 2691, Cisco 2800 series, Cisco 3600 series, Cisco 3700 series, and
Cisco 3800 series routers support DID on the 4-port FXS/DID cards in Cisco IOS Release 12.3(14)T and
later.
Note The Cisco 1751 router can support three 4-port FXS/DID VICs, up to a maximum of four DID ports. The
Cisco 1760 router can support four 4-port FXS/DID VICs, up to a maximum of eight DID ports.
Note The Cisco ICS 7750 also supports 8 FXS ports on the analog station interface 81 (ASI 81), and 16 FXS
ports on the ASI 160. See the “Processor Cards Feature Summary” chapter in the Cisco ICS 7750 System
Description document.
Figure 1 2-Port FXS Card Front Panel (VIC-2FXS)
VIC
FXS
IN USE
1 0
SEE MANUAL BEFORE INSTALLATION
IN USE
41218
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Foreign Exchange Station (FXS) Interface Cards
Figure 2 2-Port FXS Card Front Panel (VIC2-2FXS)
Connecting Voice Interface Cards to the Network
VIC22FXS
Figure 3 4-Port FXS/DID Card Front Panel (VIC-4FXS/DID)
VIC
4FXS/DID
3 2 1 0
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.
Warning
This equipment contains a ring signal generator (ringer), which is a source of hazardous voltage. Do
not touch the RJ-11 (phone) port wires (conductors), the conductors of a cable connected to the RJ-11
port, or the associated circuit-board when the ringer is active. The ringer is activated by an incoming
call.
IN USE
SEE MANUAL BEFORE INSTALLATION
IN USE
01
IN USE
!
89041
65683
Warning
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: FXS.
Note Ports on this interface card are colored gray.
Step 1 Confirm that the router is still turned off.
Step 2 Connect one end of the straight-through RJ-11 cable to an RJ-11 port on the card. (See Figure 4.)
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Connecting Voice Interface Cards to the Network
Figure 4 Connecting an FXS Card
RJ-11 ports
VIC
IN USE
FXS
1
SEE MANUAL BEFORE INSTALLATION
Straight-through
RJ-11-to-RJ-11 cable
Foreign Exchange Office (FXO) Interface Cards
IN USE
0
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Step 3
Fax machine
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. This is the
interface a standard telephone provides. This type of card is illustrated in Figure 5, Figure 6, and
Figure 7.
The VIC-2FXO and VIC-2FXO-M1 interface cards are intended for use in North America (United
States, Canada, and Mexico).
The VIC-2FXO-EU and VIC-2FXO-M2 interface cards are intended for use in Europe.
The VIC-2FXO-M3 interface card is intended for use in Australia.
The VIC2-2FXO and VIC2-4FXO interface cards are software-configurable for all regions (see Figure 6
and Figure 7).
Caution To comply with the Telcordia GR-1089 NEBS standard for electromagnetic compatibility and safety,
connect the 2-port FXO card (VIC2-2FXO) only to intra-building or non-exposed wiring or cabling. The
intrabuilding cable must be shielded and the shield must be grounded at both ends.
Warning
This equipment contains a ring signal generator (ringer), which is a source of hazardous voltage. Do
not touch the RJ-11 (phone) port wires (conductors), the conductors of a cable connected to the RJ-11
port, or the associated circuit-board when the ringer is active. The ringer is activated by an incoming
call.
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Foreign Exchange Office (FXO) Interface Cards
Connecting Voice Interface Cards to the Network
Warning
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.
FXO
Figure 5 2-Port FXO Card Front Panel (VIC-2FXO)
VIC
FXO
IN USE
1 0
SEE MANUAL BEFORE INSTALLATION
IN USE
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Figure 6 2-Port FXO Card Front Panel (VIC2-2FXO)
SEE MANUAL
VIC22FXO
BEFORE INSTALLATION
1
0
IN USE
89038
Figure 7 4-Port FXO Card Front Panel (VIC2-4FXO)
VIC24FXO
23
1
0
IN USE
Setting Jumpers on the 2-Port FXO Card
Note This information does not apply to the VIC2-2FXO card.
The FXO voice interface card includes two jumper headers, W3 and W4, to set loop-start or ground-start
mode. One jumper configures each FXO port. The default setting is loop-start, which should be
satisfactory in most installations. In this setting, jumpers are placed over positions 2 and 3 of headers
W3 and W4.
Most modern central office equipment, such as DMS-100 and 5ESS switches, provides calling party
control (CPC) and Ring on Seize on loop-start lines. CPC allows quicker disconnection, and Ring on
Seize minimizes glare (collision of inbound and outbound calls on the same interface).
If your central office does not provide these features on loop-start, you may want to configure the FXO
card for ground-start operation instead by moving the jumpers to positions 1 and 2.
For proper operation, both jumpers on the VIC-2FXO card must be configured identically.
Note This setting does not apply to VIC-2FXO-EU and VIC-2FXO-M2 interface cards.
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Connecting Voice Interface Cards to the Network
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 Ports on this interface card are colored pink.
Step 1 Confirm that the router is still turned off.
Step 2 Connect one end of the straight-through RJ-11 cable to an RJ-11 port on the card. (See Figure 8.)
Figure 8 Connecting an FXO Card
RJ-11 ports
VIC
IN USE
FXS
1
SEE MANUAL BEFORE INSTALLATION
Foreign Exchange Office (FXO) Interface Cards
IN USE
0
Straight-through
RJ-11-to-RJ-11 cable
41195
RJ-11 wall jack
Step 3 Connect the other end to an RJ-11 telephone wall outlet.
Note If you have specified the use of a private line automatic ringdown (PLAR) off-premises extension (OPX)
connection mode for an FXO voice port (with loop resistance less than 8000 Ohm), you must ensure
that the soft-offhook option is enabled on the port.
This option allows a stepped offhook resistance during seizure which avoids overloading the circuit
during offhook in the event that ringing voltage is present on the circuit at the same time as the trunk
seizure. The stepped offhook resistance is initially set to 800 Ohms, then adjusts to 50 Ohms when
ringing voltage is not present.
To ena b l e soft-offhook command on the port, and to access the connection command with plar opx
syntax, see the Cisco Command Lookup Tool.
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