Release Notes

7
Release Notes for Cisco ONS 15454 SDH Release 4.1.3
OL-4984-01
Caveats
Ethernet Polarity Detection
The TCC2 does not support Ethernet polarity detection. The TCC+ and TCCI both support this feature.
If your Ethernet connection has the incorrect polarity (this can only occur with cables that have the
receive wire pairs flipped), the TCC+/I will work, but the TCC2 will not. In this event, a standing
condition, “LAN Connection Polarity Reverse Detected” (COND-LAN-POL-REV), will be raised (a
notification will appear on the LCD, and there will be an alarm raised). This issue will most likely be
seen during an upgrade or initial node deployment. To correct the situation, ensure that your Ethernet
cable has the correct mapping of the wire wrap pins. For Ethernet pin mappings, consult the “DLP-A 21
Install LAN Wires on the Backplane” procedure in the user documentation.
Active Cross Connect or TCCi/2 Card Removal
Active cross connect or TCCi/2 cards should not be removed. If the active cross connect or TCCi/2 card
must be removed, to minimize network interruption you can first perform an XC10G (or XCVXL) side
switch and then remove the card once it is in standby, or you can perform a lockout on all circuits that
originate from the node whose active cross connect or active TCCi/2 will be removed (performing a
lockout on all spans will also accomplish the same goal). No lockout is necessary for switches initiated
through CTC.
Caution If you mistakenly remove an active cross connect or TCCi/2 card and you subsequently lose traffic
on some interface cards, you may need to physically reset these cards if they fail to regain traffic.
DDTS # CSCdz21738
A cross connect card switch can result in double traffic hits or a long hit for a E1-VC12 circuit. This
issue is under investigation.
DDTS # CSCdy65482
On the AIC-i card, a volume adjustment on the receive value of a four-wire orderwire circuit will be
displayed as the negative of its actual value. To work around this issue, enter the negative of the value
you actually want for the receive value. For example, adjust the receive value on CTC to -2 dbm for a
gain of 2 dbm. This issue will be resolved in a future release.
SONET and SDH Card Compatibility
Tables 1, 2, and 3 list the cards that are compatible for the ONS 15454 SONET and ONS 15454 SDH
platforms. All other cards are platform specific.
Table 1 SDH Data Cards that are SONET Compatible
Product Name Description
15454E-G1000-4 4 port Gigabit Ethernet Module - need GBICs
15454E-E100T-12 12 port 10/100BT Ethernet Module
15454E-E1000-2 2 port Gigabit Ethernet Module - need GBICs