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This chapter describes the DS3 and E3 port adapters that are supported in the following systems:
This chapter includes the following sections:
The ATM switch supports any port adapter combination required. Table 13-1 identifies the maximum number of DS3 or E3 interface ports supported in each system.
| System Type | Max. No. of DS3 or E3 Interface Ports |
|---|---|
Catalyst 8540 MSR | 64 |
Catalyst 8510 MSR | 32 |
Catalyst 5500 | 32 |
LightStream 1010 | 32 |
Figure 13-1 shows a DS3 port adapter with BNC connectors.
The DS3 and E3 port adapters can provide intercampus and enterprise WAN connections, as shown in Figure 13-2 .
The DS3 can also be used to link a router at a customer site to a central office, as shown in Figure 13-3.
In addition, the DS3 can link an ATM switch router at a customer site to a central office by way of a virtual path tunnel, as shown in Figure 13-4.
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Note Include the FC-3 in the configuration if your connections include a virtual path tunnel. |
The DS3 port adapter meets the Japan Approvals Institute for Telecommunications Equipment (JATE) approval. See Table 13-2 for JATE approval details for the DS3 port adapter.
| Applicant Name | Model No. | Approval No. | Date of Approval |
|---|---|---|---|
Nihon Cisco Systems | C85MS-IDS3-FRBNC | N98-N343-0 | October 21, 1998 |
Nihon Cisco Systems | WAI-T3-4BNC | N98-N3131-0 | February 5, 1998 |
Nihon Cisco Systems | WAI-T1-4BNC, | N97-K021-0 | April 30, 1997 |
This section describes supported cabling configurations for the DS3 and E3 port adapters.
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Note All ATM interfaces are full duplex. You must use the appropriate ATM interface cable to connect the ATM DS3 or E3 port adapter interface with an external ATM network. |
The DS3 and E3 port adapters provide an interface to ATM switching fabrics for transmitting and receiving data at up to 45 Mbps (DS3) or 34 Mbps (E3) bidirectionally. The ATM port adapter can support interfaces that connect to the following physical layers:
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Note For descriptions of ATM cabling requirements, see the "ATM Connection Equipment Requirements" section. |
To connect the DS3 port adapter and E3 port adapter to an external ATM network, use a 75-ohm RG-59 coaxial cable with bayonet-style twist-lock (BNC) connectors. (See Figure 13-5.)
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Caution Connect the DS3 and E3 ports to a network termination unit (NTU). NTU devices should comply with UL 1950, CSA 950, EN 60950, and IEC 950 standards. |
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Note For a description of these connectors, see the "ATM Connection Equipment Requirements" section. (Figure 2-4 shows a coaxial interface cable with BNC connectors.) |
The LEDs provide status information for the individual DS3 and E3 interface connections. The LEDs are shown in Figure 13-5 and described in Table 13-3.
| LED | State | Description |
|---|---|---|
Off | Carrier detect signal not received | |
Off | LOS1 or shutdown | |
Off | No transmit line activity |
| 1LOS = loss of signal 2LOF = loss of frame 3LCD = loss of cell delineation 4AIS = alarm indication signal 5FERF = far-end receive failure |
Posted: Mon Aug 7 16:48:40 PDT 2000
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