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This chapter contains these sections:
The Access Gateway module supports these hardware features:
These sections describe the Access Gateway module front panel features:
This section describes the Access Gateway module front panel and the interface naming conventions.
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Note The Access Gateway module can be inserted into slots 2 or 3 in the Catalyst 4003 switch and slots 2 through 6 in the Catalyst 4006 switch. In the Catalyst 4003 and Catalyst 4006 switches, slot 1 is reserved for the supervisor engine. |
Figure 2-1 shows the Access Gateway module front panel.
The Access Gateway module ports are named according to their positions in their respective slots. The slots are numbered 1, 2, and 3. The leftmost slot is slot 1, the center slot is slot 2, and the rightmost slot is 3. A VWIC, VIC, or WIC can have one or more ports, so ports on the interface cards are sequentially numbered starting with 0 for the rightmost port and increasing by one in the right to left direction.
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Note The inverse port-numbering order is inherited from existing VWIC, VIC, and WIC port-numbering conventions. |
The Access Gateway module has one STATUS LED that provides information about the module, one 10/100 MGT LED for the Ethernet management port, and four DSP bank LEDs.
Figure 2-2 shows the Access Gateway module LEDs.
Table 2-1 describes the Access Gateway module LEDs.
| LED | State | Description |
|---|---|---|
STATUS |
| Indicates the results of a series of self-tests and diagnostic tests performed by the switch. |
| Green | All the tests pass. |
| Red | A test other than an individual port test failed. |
| Orange | System boot, self-test diagnostics running, or the module is disabled. |
10/100 MGT |
| Indicates the status of the 10/100 MGT Ethernet management port. |
| Green | Link is operational. |
| Off | No signal detected, or link configuration failure. |
DSP BANK |
| Indicates DSP SIMM status. |
READY | On | The DSP SIMM has been recognized and initialized. |
| Off | The DSP SIMM has not been recognized or initialized. |
ACTIVE | On | Indicates the DSP SIMM is receiving a TDM or packet call leg through one of its available channels. |
| Off | The DSP SIMM is not receiving any calls. |
The Access Gateway module supports a Fast Ethernet port that provides access to the Access Gateway module for management and error recovery.
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Note This Fast Ethernet port should not be used as a normal data interface. |
The Access Gateway module supports one console port. You can attach an ASCI console or modem to this port.
These sections describe the VWICs, VICs, and WICs that the Access Gateway module supports:
VWICs are multiflex trunk interface cards that provide voice and data access to the PSTN domain through time-division multiplexing (TDM) ports. These cards provide basic structured and unstructured service for T1 networks and structured service for fractional E1 networks. They include an integrated data service unit (DSU)/channel service unit (CSU).
The Access Gateway module supports these 1-port multiflex trunk interface cards:
You can distinguish between T1 and E1 interface cards by the labeling on the faceplate. Figure 2-3 shows a front-panel view of VWIC-1MFT-T1.
Figure 2-4 shows a front-panel view of VWIC-1MFT-E1.
The Access Gateway module supports these 2-port multiflex trunk interface cards:
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Note The drop-and-insert functions on the VWIC-2MFT-T1-DI and VWIC-2MFT-E1-DI cards are not supported. |
You can distinguish between T1, E1, and drop-and-insert interface cards by the labeling on the faceplate. Figure 2-5 shows a front-panel view of VWIC-2MFT-T1.
Figure 2-6 shows a front-panel view of VWIC-2MFT-E1.
Figure 2-7 shows a front-panel view of VWIC-2MFT-T1-DI.
Figure 2-8 shows a front-panel view of VWIC-2MFT-E1-DI.
These sections describe the VICs that the Access Gateway module supports.
A Foreign Exchange Station (FXS) interface connects directly to a standard telephone, or similar device. This interface supplies ringing voltage and dial tone to the station.
The 2-port FXS analog interface card that the Access Gateway module supports is VIC-2FXS. Figure 2-9 shows the front panel of VIC-2FXS.
A Foreign Exchange Office (FXO) interface connects local calls to a central office or PBX. This is the interface on a standard telephone.
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Note Ports on this interface card are color-coded pink. |
The Access Gateway module supports these 2-port FXO analog interface cards:
VIC-2FXO is intended for use in North America (United States, Canada, and Mexico). VIC-2FXO-EU is intended for use in Europe.
Figure 2-10 shows the front panel of VIC-2FXO.
The 2-port ISDN BRI/ST card has a client-side physical interface for connection to an NT1 that terminates an ISDN telephone network. Each of the two ports can carry two calls (one over each ISDN B channel) for a total of four calls per ISDN BRI module.
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Note The 2-port ISDN BRI/ST card supports only data and can be used in slot 1, slot 2, or slot 3. |
The Access Gateway module supports the 2-port ISDN BRI/ST interface card:
Figure 2-11 shows the front panel of VIC-2BRI-S/T-TE.
These sections describe the WICs that the Access Gateway module supports.
The 1-port 56/64-kbps DSU/CSU card includes an integral DSU/CSU and can be configured to provide circuit-switched, dedicated, or leased-line service at 56 kbps. This card also supports 64-kbps dedicated lines.
The Access Gateway module supports this 1-port 56/64-kbps DSU/CSU card:
Figure 2-12 shows the front panel of WIC-1DSU-56K.
The 2-port asynchronous/synchronous serial card provides an EIA/TIA-232, EIA/TIA-449, V.35, X.21, DTE/DCE, EIA-530, or EIA-530A serial interface to a Catalyst 4000 family switch.
The Access Gateway module supports this 2-port asynchronous/synchronous serial card:
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Note Only synchronous mode is supported. |
See Figure 2-13 shows the front panel of WIC-2A/S.
You can remove and install the Access Gateway module without powering down the switch. This feature is known as hot swapping.
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Caution Do not attempt to hot swap a VIC, WIC, or VWIC from the Access Gateway module. Hot swapping a VIC, WIC, or VWIC could damage the card. |
When you remove or insert the Access Gateway module while the switch is powered on and operating, the system does the following:
1. Scans the backplane for configuration changes.
2. Initializes all newly inserted Access Gateway modules, notes any removed modules, and places them in the administratively shutdown state.
3. Places any previously configured interfaces on the Access Gateway module back to the state they were in when they were removed. Any newly inserted interfaces are put in the administratively shutdown state, as if they were present (but unconfigured) at boot time.
The system runs diagnostic tests on any new interfaces. If the test passes, the system is operating normally. If the new Access Gateway module is faulty, the system resumes normal operation but places the new module in the "faulty" state.
If the diagnostic test fails, the system crashes, which usually indicates that the new Access Gateway module has a problem and should be removed.
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Caution To avoid erroneous failure messages, allow at least 120 seconds for the system to reinitialize, and note the current configuration of all interfaces before you remove or insert another Access Gateway module. |
Console> (enable) 1999 Sep 09 12:23:26 %SYS-5-MOD_REMOVE:Module 3 has been removed Console> (enable) 1999 Sep 09 12:23:44 %SYS-5-MOD_INSERT:Module 3 has been inserted Console> (enable) 1999 Sep 09 12:23:47 %SYS-5-MOD_OK:Module 3 is online Console> (enable) If you use the show mod command to query the module before reinstalling a module to replace the removed one, the system responds, "Module 3 is not installed." When the module is reinserted, the system recognizes the module as ready again.
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Note The show mod process may take a few minutes to run. |
Posted: Thu Sep 14 18:40:14 PDT 2000
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