Cisco ciscoBus CSC-C2CTR Installation And Upgrade Instructions page 9

is CCTL2-compatible. When you replace a CSC-CCTL ciscoBus controller card with a
CSC-CCTL2 ciscoBus controller card, you must upgrade the microcode on all ciscoBus interface
cards to Microcode Version 10.0 or later.
Note
Revision 5.0 CSC-MEC, contact a customer service representative for upgrade information.
You can display a description of the current ciscoBus controller and ciscoBus interface cards with
the EXEC show controller cbus command, an example of which is shown on page 7. The name and
controller type of each ciscoBus card, the ciscoBus slot in which it is installed, and the microcode
version of each is displayed. (Additional statistical information is also displayed for each interface
card, but is omitted from the example.)
Slot Priority
The system card cage, shown in Figure 5, has nine slots, five of which are designated ciscoBus slots.
The center ciscoBus slot is reserved for the ciscoBus controller card, leaving four ciscoBus slots
available for ciscoBus interface cards.
The system uses a slot priority scheme that assigns a priority to each ciscoBus card according to the
ciscoBus slot in which the card resides. The card in ciscoBus slot 0 receives the highest ciscoBus
priority, while the card in ciscoBus slot 3 receives the lowest ciscoBus priority.
Slot priorities are set to accommodate the amount of traffic generated by each interface card and the
amount of card buffering required. Each ciscoBus interface card is placed in a specific slot with
regard to other ciscoBus interface cards, if any. The order of priority is the same for both first- and
second-generation ciscoBus controllers, except that the cards with the C2 designation can only be
used with the CSC-CCTL2.
Following is a list of ciscoBus interface cards in order of priority, from highest to lowest:
CSC-MEC and C2MEC (10 Mbps)
1
CSC-C2CTR (16 Mbps)
2
CSC-HSCI and C2HSCI with an APP-LHS applique (HSSI interface) (45 through 52 Mbps)
3
4 CSC-FCI and C2FCI (100 Mbps)
5 CSC-C2FCIT (100 Mbps)
6 CSC-HSCI and C2HSCI with an APP-ULA applique (UltraNet interface) (125 Mbps)
Install CSC-MEC or C2MEC cards in the lowest-numbered slots, beginning with slot 0 (which has
the highest priority), followed by CSC-C2CTR cards. After all CSC-MEC and CSC-C2CTR cards
are installed, install CSC-HSCI and C2HSCI cards with the APP-LHS applique in the
lowest-numbered available slots. Follow with the CSC-FCI and C2FCI cards. Next, install
CSC-C2FCIT cards. Last, install the CSC-HSCI and C2HSCI cards with the APP-ULA (UltraNet)
applique. Always install cards in the lowest-numbered available slot. For example, if using only
CSC-C2HSCI cards (with APP-ULA), place the first in slot 0, the second in slot 1, and so forth.
Only a Revision 5.1 or later CSC-MEC can be upgraded to a CSC-C2MEC. If you have a
ciscoBus Token Ring Card and Applique Installation and Upgrade Instructions
Installation Prerequisites
9