Cisco ONS 15454 SDH Specifications Page 293

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7-15
Cisco ONS 15454 SDH Installation and Operations Guide, R3.3
May 2002
Chapter 7 Card Provisioning
Converting E1-N14 and DS-3i-N-12 Cards From 1:1 to 1:N Protection
7.3 Converting E1-N14 and DS-3i-N-12 Cards From 1:1 to 1:N
Protection
The ONS 15454 SDH provides several protection options for E1-N14 and DS-3i-N-12 cards:
unprotected, 1:1, and 1:N (N=5 or less). Changing protection from 1:1 to 1:N increases the available
bandwidth because two of the three cards used for protection in the 1:1 protection group become working
cards in the 1:N group.
When setting up 1:N protection, install the E1-N14 or DS-3i-N-12 card in Slot 3 or 15 on the same side
of the ONS 15454 SDH as the cards it protects. Slot 3 protects cards in Slots 1 - 2 and 4 - 6. Slot 15
protects Slots 12-14 and 16-17. An E1-N14 or DS-3i-N-12 card installed in Slot 3 or 15 can protect up
to five E1-N14 or DS-3i-N-12 cards. If you install a DS-3i-N-12 or E1-N14 card in another slot, it is not
able to protect other E1-N14 or DS-3i-N-12 cards in 1:N protection.
To create 1:1 protection for E1-N14 and DS-3i-N-12 cards, see the Creating Card Protection Groups,
page 3-24.
ES Errored seconds Numeric. Default (VC HO):
12 (15 minutes)
100 (1 day)
SES Severely errored seconds Numeric. Default (VC HO):
3 (15 minutes)
7 (1 day)
EB Errored blocks Numeric. Default (VC HO):
15 (15 minutes)
125 (1 day)
UAS Unavailable seconds Numeric. Default (VC HO):
10 (15 minutes)
10 (1 day)
BBE Background block error Numeric. Default (VC HO):
25 (15 minutes)
250 (1 day)
Alarming (Alarming subtab)
Port Port number 1 - 12
Profile Sets the alarm profile for the port. Default
Inherited
Custom profiles (if any)
Suppress
Alarms
Suppresses alarm display for the port. Unselected (default)
Selected
Table 7-5 DS3i-N-12 Card Parameters (continued)
Parameter Description Options
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