Cisco Systems Cisco ONS 15454 SDH manual Type Cards Description and Installation Requirements

Chapter 4 Turn Up Node

NTP-D170 Create Protection Groups

Table 4-3describes the protection types available on the ONS 15454 SDH.

Table 4-3 Card Protection Types

Type	Cards	Description and Installation Requirements
1:1	E1-N-14	Pairs one working card with one protect card. The protect card
	DS3i-N-12	should be installed in an odd-numbered slot and the working card
		in an even-numbered slot next to the protect slot towards the
	E3-12
		TCC2, for example: protect in Slot 1, working in Slot 2; protect
	STM1E	in Slot 3, working in Slot 4; protect in Slot 15, working in Slot 14.
		1:1 protection can be revertive or non-revertive. For more
		information, see the Cisco ONS 15454 SDH Reference Manual.
1:N	E1-N-14	1:N protection allows a single card to protect up to five (four for
	E1-42N	the DS3i_N-12 card) working cards of the same electrical level.
		A E1-N-14 card protects E1-N-14 cards and a DS3i-N-12 card
	DS3i-N-12
		protects DS3i-N-12 cards.
	STM1E
1+1	Any STM-N	Pairs a working STM-N card/port with a protect STM-N
		card/port. For multiport STM-N cards, the protect port must
		match the working port on the working card. For example, Port 1
		of an STM-1 card can only be protected by Port 1 of another
		STM-1 card. The ports on multiport cards must be either working
		or protect. You cannot mix working and protect ports on the same
		card. Cards do not need to be in adjoining slots. 1:1 protection can
		be revertive or non-revertive, unidirectional or bidirectional.
Y Cable	MXP_2.5_10G	Pairs a working transponder or muxponder card/port with a
	TXP_MR_10G	protect transponder or muxponder card/port. The protect port
		must be on a different card than the working port, and it must be
	TXP_MR_2.5G
		the same card type as the working port. The working and protect
		port numbers must be the same, that is, Port 1 can only protect
		Port 1, Port 2 can only protect Port 2, etc.
Splitter	TXPP_MR_2.5G	Splitter protection is automatically provided with the
		TXPP_MR_2.5G card.
Unprotected	Any	Unprotected cards can cause signal loss if a card fails or incurs a
		signal error. However, because no card slots are reserved for
		protection, unprotected schemes maximize the service available
		for use on the ONS 15454 SDH. Unprotected is the default
		protection type.

Stop. You have completed this procedure.

	Cisco ONS 15454 SDH Procedure Guide, R4.6
January 2004		4-27