Txp_Mr_2.5G And Txpp_Mr_2.5G Safety Labels; Figure 14-53 Txp_Mr_2.5G And Txpp_Mr_2.5G Block Diagram - Cisco ONS 15454 DWDM Installation And Operation Manual

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14.8.3 TXP_MR_2.5G and TXPP_MR_2.5G Cards

You must use a 20-dB fiber attenuator (15 to 25 dB) when working with the TXP_MR_2.5G and

TXPP_MR_2.5G cards in a loopback on the trunk port. Do not use direct fiber loopbacks with the

TXP_MR_2.5G and TXPP_MR_2.5G cards. Using direct fiber loopbacks causes irreparable damage to

the TXP_MR_2.5G and TXPP_MR_2.5G cards.

You can install TXP_MR_2.5G and TXPP_MR_2.5G cards in Slots 1 to 6 and 12 to 17. You can

provision this card in a linear configuration. TXP_MR_10G and TXPP_MR_2.5G cards cannot be

provisioned as a BLSR, a path protection, or a regenerator. They can be used in the middle of BLSR or

1+1 spans. They can only be used in the middle of BLSR and 1+1 spans when the card is configured for

transparent termination mode.

The TXP_MR_2.5G card features a 1550-nm laser for the trunk/line port and a 1310-nm laser for the

client port and contains two transmit and receive connector pairs (labeled) on the card faceplate. The

card uses dual LC connectors for optical cable termination.

The TXPP_MR_2.5G card features a 1550-nm laser for the trunk/line port and a 1310-nm or 850-nm

laser (depending on the SFP) for the client port and contains three transmit and receive connector pairs

(labeled) on the card faceplate. The card uses dual LC connectors for optical cable termination.

The TXP_MR_2.5G and TXPP_MR_2.5G cards detect SF, LOS, or LOF conditions on the optical

facility. Refer to the Cisco ONS 15454 SONET and DWDM Troubleshooting Guide for a description of

these conditions. The card also counts section and line BIP errors from B1 and B2 byte registers in the

section and line overhead.

14.8.3.3 TXP_MR_2.5G and TXPP_MR_2.5G Safety Labels

The TXP_MR_2.5G and TXPP_MR_2.5G cards have several safety labels that provide laser radiation

and electrical shock warnings.

Cisco ONS 15454 DWDM Installation and Operations Guide, R4.7

Card Reference

December 2004