> Cabling the Optical (ATM) Line Cards
> This chapter provides information on the OLC’s and OLC2’s s physical interfaces and instructions for installing the cables.
> Optical (ATM) Line Cards Interfaces
> The OLC or OLC2 ATM line card is always installed directly behind its respective PSC or PSC2 in rear slots 17 through 23, 26 through 39, and 42 through 48.
> Both the OLC and OLC2 have four optical fiber interfaces (ports) that support IP or Broadband-SS7 over ATM (Asynchronous Transfer Mode). These ports connect our SGSN products via IuPS interfaces to other elements in the packet data network.
> The optical (ATM) line cards supports two versions of SFP modules (ports). The type of optical fiber interface on the line card is dictated by the Small Form-factor Pluggable (SFP) modules installed on the line card. The SFP modules are hot-pluggable.
> SFP Modules Supported by the OLC and OLC2 Optical (ATM) Line Card

> Module Type | Card Identification | Interface Type | Cable Specifications
> Single-mode Optical Fiber | ATM/POS OC-3 SM IR-1 | Single-mode Fiber, LC duplex female connector | Fiber Types: Single-mode optical fiber Wavelength: 1310 nm Core Size: 9 micrometers Cladding Diameter: 125 micrometers Range: Intermediate/21 kilometers Attenuation: 0.25 dB/KM Min/Max Tx Power: -15 dBm/-8 dBm Rx Sensitivity: -28 dBm Important: Please read all the notices and warnings for Class 1 Laser devices following this table before handling this component.
> Multi-mode Optical Fiber | ATM/POS OC-3 Multi-Mode | Multi-mode Fiber, LC duplex female connector | Fiber Types: Multi-mode optical fiber Wavelength: 1310 nm Core Size: 62.5 micrometers Cladding Diameter: 125 micrometers Range: Short/2 kilometers Min/Max Tx Power: -19 dBm/-14 dBm Rx Sensitivity: -30 dBm Important: Please read all the notices and warnings for Class 1 Laser devices following this table before handling this component.

> ‌
> Important: Class 1 Laser Compliance Notice Because of the optical SFP interface, this product has been tested and found to comply with the limits for Class 1 laser devices for IEC825, EN60825, and 21CFR1040 specifications.
> The following figure shows the optical interface, labelled ATM/POS OC-3, for the optical (ATM) line card. Each SFP fiber interface is equipped with a transmit (TX) port and a receive (RX) port.
> Optical (ATM) Line Card Fiber Interfaces
> Cabling the Optical SFP Interface
> To use the optical SFP interfaces on the OLC or OLC2 Optical (ATM) line cards, follow the instructions below.
> Warning: Only trained and qualified personnel should install, replace, or service this equipment. Invisible laser radiation may be emitted from the aperture of the port when no cable is connected. Avoid exposure to laser radiation and do not look into open apertures. Be sure to keep the cover on the interface when it is not in use. Laser Klasse 1 - nur speziell ausgebildetes Personal darf dieses Geraet warten. Nicht in den Laser schauen, um Augenverletzungen zu vermeiden. Nicht genutzte Buchsen mit der entsprechenden Kappe verschliessen.

> Step 1 | Remove the cover from the SFP interface.

> Step 2 | Insert the optical cable into the interface and ensure that it is securely in place.

Cisco Systems Inc.
Tel: 408-526-4000
Fax: 408-527-0883