Chapter 5 Module Descriptions

Communication Interface Module

optical signal to a specific International Telecommunication Union (ITU-T) G.692-compatible wavelength. The CLIP module then transfers the converted optical signal to the DWDM side of the ONS 15200 network.

When the CLIP module receives the optical signal from the DWDM side of the ONS 15200 network, the CLIP module converts the selected optical signal to the 1310 nm wavelength region and delivers it to the client layer. If the ONS 15200 system is optically protected (that is, the optical signal is carried on two routes), the CLIP module selects which optical signal to transfer to the client layer. You can install a CLIP module in either the ONS 15252 Multichannel Unit (MCU) or the ONS 15201 Single-Channel Unit (SCU).

When the CLIP modules are not installed, attach front covers for electromagnetic compatibility and electromagnetic interference (EMC/EMI) precautions.

Release 1.1 provides a new CLIP module that incorporates both clocked (3R) and unclocked (2R) data regeneration. You can set the mode of operation (2R or 3R) using the management interfaces. The new 2R/3R CLIP is fully compatible with the existing 3R CLIP. The 2R/3R CLIP is user configurable for unprotected or fiber protected operation.

In addition, Release 1.1 provides two dispersion tolerances: 1800 ps/nm at 0 and 7 dBm, and 3000 ps/nm at 0 dBm.

Restrictions exist for CLIP replacement based on whether you are using a plenum or a fan unit in the ONS 15252 MCU. Table 5-1identifies the CLIP restrictions.

Note CLIP replacement restrictions are related to mean time between failure (MTBF) performance and not NEBS-2 compliance.

Table 5-1 CLIP Restrictions

ONS 15252

CLIP

Maximum number

 

Maximum

Equipment

Version

of CLIPs

Restriction

temperature

 

 

 

 

 

2U plenum

3.2

16

None

25°C (77°F)

 

 

 

 

 

2U plenum

3.2

4

Slots 1 – 4

40°C (104°F)

 

 

 

 

 

2U plenum

3.5

2 (3.5)/14 (3.2)

Not adjacent

25°C (77°F)

 

 

 

 

 

2U plenum

3.5

3

Slots 1 – 3

40°C (104°F)

 

 

 

 

 

Fan unit

3.2 or 3.5

16

None

None

 

 

 

 

 

5.3 Communication Interface Module

The CIM allows you to extend the ONS 15252 MCU internal controller area network (CAN) bus to another ONS 15252 MCU or to an ONS 15201 SCU. Extending the CAN bus allows you to configure several network elements (NEs) into a larger functional unit. The CIM also provides the local craft interface to the Maintenance Manager software package, and the Electronic Industry Association/Telecommunication Industry Association (EIA/TIA) EIA/TIA-232 access interface to the ONS 15252 MCU via an EIA/TIA-232 cable. The CIM is installed in the ONS 15252 MCU. The CIM and the NCB module communicate using ONS 15252 MCU backplane.

Cisco ONS 15200 Product Description

5-2

78-13766-01

 

 

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Cisco Systems ONS 15200 Communication Interface Module, Ons, Maximum, Equipment Version CLIPs Restriction Temperature