|
|
This chapter describes the 4-port OC-12c interface module that is supported in the
Catalyst 8540 MSR. This chapter includes the following sections:
The following OC-12c interface modules are described in this chapter:
The Catalyst 8540 MSR supports up to a maximum of eight OC-12c interface modules with a maximum of 32 OC-12c interface ports.
 |
Note The Catalyst 8510 MSR, Catalyst 5500, and LightStream 1010 do not support the 4-port OC-12c interface module. |
Figure 7-1 shows an OC-12c interface module. The four ports are available in either multimode or single-mode connectors.
The OC-12c interface module has four ports that provide the following ATM connections, as shown in Figure 7-2:
The OC-12c port adapter with multimode and single-mode connections meets the Japan Approvals Institute for Telecommunications Equipment (JATE) approval. See Table 7-1 for JATE approval details for the OC-12 port adapter.
| Applicant Name | Model No. | Approval No. | Date of Approval |
|---|---|---|---|
Nihon Cisco Systems | WAI-OC-12-1SS | L00-0009 | January 12, 2000 |
This section describes supported cabling configurations for the OC-12c interface module, which provides multimode and single-mode connections.
|
Note All ATM interfaces are full duplex and are composed of two fibers, one for each link direction. You must use the appropriate ATM interface cable to connect the ATM single-mode or multimode interface with an external ATM network. Do not mix single-mode or multimode ports or cables. |
The OC-12c interface module can support interfaces that connect to the following physical layers:
|
Note For descriptions of ATM cabling requirements, see the "ATM Connection Equipment Requirements" section. |
To connect the OC-12c multimode or single-mode interface modules to other OC-12c equipment by way of an optical link, use a dual SC-type connector for multimode and single-mode fiber-optic traffic. (See Figure 7-3.)
|
Note For a description of an SC-type connector, see the "ATM Connection Equipment Requirements" section. (See Figure 2-1.) |
 |
Caution If you are attaching a short cable to the OC-12c intermediate reach port adapter, you must add 10 dB of attenuation in the interface or the transmitter can overdrive the receiver and introduce data errors. |
The LEDs provide status information for the individual OC-12c multimode and single-mode fiber-optic connections. The LEDs are shown in Figure 7-3 and described in Table 7-2.
| LED | State | Description |
|---|---|---|
Off | Carrier detect signal not received | |
Off | Administratively down or LOS1 | |
Off | No transmit line activity and administratively down |
| 1LOS = loss of signal 2LOF = loss of frame 3OCD = out of cell delineation 4AIS = alarm indication signal 5LOP = loss of pointer 6RDI = remote defect indicator |
Posted: Mon May 8 18:54:00 PDT 2000
Copyright 1989 - 2000©Cisco Systems Inc.