Cisco ciscoBus CSC-C2CTR Quick start guide

1
Doc. No.
Copyright © 1994
Cisco Systems, Inc.
All rights reserved.
ciscoBus Token Ring Card and Applique
Installation and Upgrade Instructions
78-0875-04
Product Numbers:
CSC-C2CTR=
APP-LTR2=
MC-C2CTR-V10.2=
This document contains instructions for installing the multiport ciscoBus Token Ring interface card
(CSC-C2CTR) and Token Ring applique (APP-LTR2) in your AGS+ chassis. This document also
provides instructions for upgrading the C2CTR microcode by replacing a single erasable
programmable read-only memory (EPROM) component on the CSC-C2CTR card. The
CSC-C2CTR provides two or four high-speed Token Ring interfaces for connection to IEEE 802.5
and IBM-compatible Token Ring media at speeds of 4 or 16 Mbps. The APP-LTR2 provides the
interface between the CSC-C2CTR and your Token Ring network. Both the card and applique must
be installed in an AGS+ with a CSC/3 or CSC/4 processor card and a ciscoBus II controller card
(CSC-CCTL2).
The sections in this document include the following:
•Product Descriptions, page 2
—CSC-C2CTR Interface Card, page 4
—APP-LTR2 Applique, page 5
•Installation Prerequisites, page 6
—System Compatibility Requirements, page 6
—Ring Speed, page 16
—List of Parts, page 16
—Required Tools, page 17
—Safety, page 17
•Preventing Electrostatic Discharge Damage, page 18
•Installation, page 18
—Installing the CSC-C2CTR Interface Card, page 19
—Installing the APP-LTR2 Applique, page 20

2ciscoBus Token Ring Card and Applique Installation and Upgrade Instructions
Product Descriptions
—Finishing the Installation, page 25
—Checking the Installation, page 25
—Closing the Chassis, page 28
•Configuring the Interfaces, page 29
—Privileged Access to the EXEC Command Interpreter, page 29
—Using the Configure Command, page 30
—Checking the Configuration, page 32
•Upgrading Microcode, page 34
•Cisco Information Online, page 35
Product Descriptions
The following sections contain physical descriptions and brief functional overviews of the
CSC-C2CTR card and the APP-LTR2 applique.
The CSC-C2CTR resides in the AGS+ system card cage. Each port on the CSC-C2CTR provides
one Token Ring interface and connects to an APP-LTR2 applique with an internally routed ribbon
cable. The APP-LTR2, which resides in an applique card cage, are installed in the two far right large
plate areas in the rear of the AGS+. The appliques provide the external interface to the Token Ring
network.
A typical installation, showing the interface card, the (internal) interface cable, and the interface
applique, is shown in Figure 1. The system card cage and applique card cages are not included in the
drawing in order to more clearly show the cable routing.

ciscoBus Token Ring Card and Applique Installation and Upgrade Instructions 3
Product Descriptions
Figure 1 Typical Installation, Shown Without Card Cages
H1467a
Interface
applique
Front of chassis
Interface
cable
Interface
card

4ciscoBus Token Ring Card and Applique Installation and Upgrade Instructions
Product Descriptions
CSC-C2CTR Interface Card
The CSC-C2CTR, shown in Figure 2, contains four ports. The card supports two interfaces when
used with one APP-LTR2 and four interfaces when used with two APP-LTR2s. Each port (interface)
is individually configured to operate at 4 or 16 Mbps. The C2CTR-specific microcode (firmware)
resides on an EPROM in socket position U98, which may need to be replaced when the system
software is upgraded or when operating enhancements are implemented. Instructions for the
microcode upgrade can be found in the section “Upgrading Microcode” on page 34.
Figure 2 CSC-C2CTR ciscoBus Token Ring Card—Component-Side View
The four interface ports are numbered from left to right TR 0 through TR 3 when viewing the card
as installed in the system card cage. (See Figure 3.) Each port is connected to an APP-LTR2 with an
internal ribbon cable. Four green LEDs indicate the status of each port (interface). When an interface
is up, or active in the ring, the corresponding LED is on. The LED is off when the interface is
inactive, administratively down, not internally connected to the applique, or the applique is not
externally connected to the ring.
Figure 3 CSC-C2CTR ciscoBus Token Ring Card—Front-Edge View
The C2 designator in the product number indicates that the CSC-C2CTR card must be installed in
an AGS+ with a ciscoBus II controller card (CSC-CCTL2). The CSC-C2CTR can be installed in any
available ciscoBus slot except the center slot, which contains the CSC-CCTL2. However, for
optimum performance, the CSC-C2CTR should be installed in the highest-priority slot available in
accordance with the slot priority scheme described on page 9. Instructions for determining your
current system software version and the type of ciscoBus controller installed are provided in the
section “System Compatibility Requirements” on page 6.
U98
H1537a
TR 0
Microcode
EPROM
TR 1 TR 2 TR 3LEDs
(4)
Port 0
LED
H1206a
Port 0
Port 1
LED Port 2 LED Port 3 LED
Port 1 Port 2 Port 3
Interface ports

ciscoBus Token Ring Card and Applique Installation and Upgrade Instructions 5
Product Descriptions
APP-LTR2 Applique
The APP-LTR2, shown in Figure 4, provides the required high-speed interfaces between the
CSC-C2CTR and your Token Ring network. Each applique contains two female DB-9 Token Ring
connectors and the Media Access Control (MAC) circuitry for each interface. The green power LED
goes on to indicate the applique is receiving power from the CSC-C2CTR. Two ribbon cables
provide the internal connection between the applique and two ports on the CSC-C2CTR.
Figure 4 APP-LTR2 Applique
The APP-LTR2 is installed in an applique card cage mounted on the rear panel of an AGS+. One or
two appliques can be installed in each card cage. Because of internal space limitations, no more than
two applique card cages can be installed in the AGS+ chassis; therefore, a maximum of four
APP-LTR2s can be installed. A grounding strap, which is included with the applique, must also be
installed to prevent noise on the interface. Detailed instructions for installing the applique and card
cage are provided in the section “Installing the APP-LTR2 Applique” on page 20.
POWER
H1213a
MAC circuitry
Internal connectors
(to CSC-C2CTR)

6ciscoBus Token Ring Card and Applique Installation and Upgrade Instructions
Installation Prerequisites
Installation Prerequisites
This section describes the minimum compatibility requirements that your system hardware and
software must meet before you install a new CSC-C2CTR. It describes the various commands you
can use to verify the compatibility requirements.
System Compatibility Requirements
Before installing a new CSC-C2CTR, ensure that your existing system components meet the
following minimum configuration requirements for compatibility with the card:
•An AGS+ with a CSC/3 or CSC/4 processor card.
•The system is running Software Release 9.1 or later.
•A CSC-CCTL2 ciscoBus 2 controller card (Controller Type 6.0 or later) is installed.
•All ciscoBus interface cards are compatible with the CSC-CCTL2. (All must be running
Microcode Version 10.0 or later.) If you are replacing a CSC-CCTL with a CSC-CCTL2, you
must also upgrade all existing ciscoBus interfaces to Microcode Version 10.0 (or later) at the
same time you replace the ciscoBus controller card.
•All Multibus Token Ring interface cards meet the following requirements:
—CSC-1R and CSC-2R microcode is Version 1.2 or later.
—CSC-R16M microcode is Version 3.2 or later.
Refer to the section “Compatibility with Other Cards” on page 15 for compatibility requirements
for all ciscoBus and Multibus cards when running Software Release 9.1 (required for
CSC-C2CTR and CSC-CCTL2 operation).
•An applique card cage (product number MAS-CCG) is installed in the chassis, and there is at
least one empty slot available.
or
You received a new card cage in which the APP-LTR2 is already installed.
•There is a ciscoBus slot available (empty) for each CSC-C2CTR you will install.
You can display the current software version and the type of processor card installed with the show
version command. The current system software version is displayed in the first line of the output,
and the processor card information is displayed on the eighth line, followed by a list of the installed
interface cards. A sample of the display follows:
router# show version
GS Software (GS3-BFX), Version 9.1
Copyright (c) 1986-1992 by cisco Systems, Inc.
Compiled Wed 03-Jun-92 01:24
System Bootstrap, Version 4.5(0.8)
router uptime is 11 days, 8 hours, 41 minutes
System restarted by power-on
System image file is "router-system", booted via tftp from 131.108.1.111
CSC3 (68020) processor with 4096K bytes of memory.
X.25 software.
Bridging software.
1 MCI controller (2 Ethernet, 2 Serial).
1 cBus controller.
1 MEC controller (6 Ethernet).

ciscoBus Token Ring Card and Applique Installation and Upgrade Instructions 7
Installation Prerequisites
1 CTR controller (4 Token Ring).
Environmental Controller.
8 Ethernet/IEEE 802.3 interface.
4 Token Ring/IEEE 802.5 interface.
2 Serial network interface.
1 HSSI network interface.
1 FDDI network interface.
You can display a description of the current ciscoBus controller card with the show controller cbus
EXEC command. The ciscoBus controller type is displayed, followed by a description of each
ciscoBus interface card, the ciscoBus slot in which it is installed, and the microcode version of each.
A sample of the display follows. For complete descriptions of all of the displayed fields, refer to the
Router Products Configuration Guide and Router Products Command Reference publications. In the
following display, note that the microcode version on all ciscoBus interface cards is Version 10.0 or
later, indicating that the ciscoBus controller is a CSC-CCTL2.
router# show cont cbus
ciscoBus 1, controller type 6.0, microcode version 10.0
512 Kbytes of main memory, 128 Kbytes cache memory
(display text omitted)
FDDI-T 0, controller type 7.1, microcode version 10.1
Interface 0 - Fddi0, station address 0000.0c02.6aa3
(display text omitted)
CTR 1, controller type 9.0, microcode version 10.1
Interface 8 - TokenRing0, station address 0000.3040.e004
13 buffer RX queue threshold, 31 buffer TX queue limit,
(display text omitted)
Interface 9 - TokenRing1, station address 0000.3040.e084
(display text omitted)
Interface 10 - TokenRing2, station address 0000.3040.e044
(display text omitted)
Interface 11 - TokenRing3, station address 0000.3040.e0c4
(display text omitted)
HSCI 2, controller type 10.0, microcode version 10.0
Interface 16 - Hssi0, electrical interface is Hssi DTE
(display text omitted)
You can display a description of the current Multibus Token Ring interfaces with the show
controller token command. There is no card name or controller type displayed with this command.
Although it is not apparent, the card type is distinguishable in the first line of the show controller
token display (CSC-1R/2Rs are displayed as TR Unit non the first line of the display; CSC-R16Ms
are labeled TRnin the first line.) The microcode version (labeled f/w ver) is displayed on about the
twelfth line of the display.
The following example shows a CSC-1R with Microcode Version 1.2 installed:
router# show cont token
TR Unit 0 is board 0 - ring 0
(11 lines of text omitted)
f/w ver: 1.2 expr 0, chip f/w:00000.ME31100,[bridge capable]
SMT versions: 1.01 kernel, 4.02 fastmac
(text omitted)
The following example shows a CSC-R16M with Microcode Version 3.2:
router# show cont token
TR0: state 3, dev blk: 0x1C98A4, mailbox: 0x21000B0, sca: 0x2010000
(11 lines of text omitted)
f/w ver: 3.2, chip f/w: '000000.ME31100', [bridge capable]

8ciscoBus Token Ring Card and Applique Installation and Upgrade Instructions
Installation Prerequisites
For field descriptions and additional commands, refer to the Router Products Configuration Guide
and Router Products Command Reference publications.
Note If your system software, ciscoBus controller, or other interface cards in your system do not
meet the preceding compatibility requirements, contact a customer service representative.
ciscoBus Configuration
Before installing a new CSC-C2CTR, ensure that all ciscoBus interface cards are the C2 type (all
have Microcode Version 10.0 or later installed), that any new ciscoBus cards you are installing will
not exceed the maximum port limits for ciscoBus interfaces, and that the ciscoBus cards will be
placed in the correct order of priority in the ciscoBus slots. The following sections describe how to
determine all of these requirements.
ciscoBus Controller Compatibility
All ciscoBus interface cards, which are listed in Table 1, contain card-specific microcode that
determines whether the card is compatible with the first- or second-generation ciscoBus controller
card. Following are compatibility guidelines:
•ciscoBus cards with microcode versions earlier than Version 10.0 are compatible only with the
first-generation ciscoBus controller card (CSC-CCTL).
•ciscoBus cards with Microcode Version 10.0 or later are compatible only with the
second-generation ciscoBus controller card (CSC-CCTL2).
•The CSC-C2CTR and CSC-C2FCIT are compatible only with the CSC-CCTL2. The initial
release of both cards contained Microcode Version 10.0.
Table 1 CSC-CCTL2 Interface Card Compatibility Requirements
The C2 designator added to the name of a ciscoBus interface card indicates that the card is running
Microcode Version 10.0 or later and is, therefore, compatible with the second-generation ciscoBus
controller card, the CSC-CCTL2. With the exception of a Revision 5.0 CSC-MEC (see Note
following), the first- and second-generation ciscoBus interface cards are otherwise the same. For
example, you can upgrade a revision 5.1 CSC-MEC to a CSC-C2MEC by replacing the microcode
with Version 10.0 or later. When you upgrade the microcode on the revision 5.1 CSC-MEC to
Version 10.0, the name of the card also changes from CSC-MEC to CSC-C2MEC to indicate that it
1. Only CSC-C2MEC Revision 5.1 or later is compatible with the CSC-CCTL2.
CCTL Controller
Card CCTL2 Controller Card Description
CSC-CCTL CSC-CCTL2 ciscoBus controller
CSC-FCI CSC-C2FCI Fiber Distributed Data Interface (FDDI)
CSC-C2FCIT FDDI with translational bridging
CSC-HSCI CSC-C2HSCI High-Speed Serial Interface (HSSI)
CSC-C2CTR ciscoBus Token Ring interface, 4/16Mbps
CSC-MEC CSC-C2MEC1Multiport Ethernet Controller interface

ciscoBus Token Ring Card and Applique Installation and Upgrade Instructions 9
Installation Prerequisites
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 Only a Revision 5.1 or later CSC-MEC can be upgraded to a CSC-C2MEC. If you have a
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:
1CSC-MEC and C2MEC (10 Mbps)
2CSC-C2CTR (16 Mbps)
3CSC-HSCI and C2HSCI with an APP-LHS applique (HSSI interface) (45 through 52 Mbps)
4CSC-FCI and C2FCI (100 Mbps)
5CSC-C2FCIT (100 Mbps)
6CSC-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.

10 ciscoBus Token Ring Card and Applique Installation and Upgrade Instructions
Installation Prerequisites
Figure 5 AGS+ System Card Cage
ciscoBus Port Limitations
The CSC-C2CTR will interoperate with any of the C2-designated ciscoBus interface cards. The
maximum number of CSC-C2CTR ports that can be used when other ciscoBus interfaces are
installed are shown in Table 2.
Table 2 Maximum Port and Card Configurations for ciscoBus Interface Cards
C2CTR
Ports (Cards) C2FCIT/(C2)FCI 1
Ports (Cards) (C2)MEC Ports (Cards) (C2)HSSI Ports (Cards)
0 (0) 0 (0) 24 (4) 0 (0)
0 (0) 1 (1) 18 (3) 0 (0)
0 (0) 0 (0) 18 (3) 1 (1)
4 (1) 0 (0) 18 (3) 0 (0)
0 (0) 2 (2) 12 (2) 0 (0)
0 (0) 1 (1) 12 (2) 1 (1)
4 (1) 1 (1) 12 (2) 0 (0)
0 (0) 0 (0) 12 (2) 2 (2)
4 (1) 0 (0) 12 (2) 1 (1)
8 (2) 0 (0) 12 (2) 0 (0)
6 (2) 1 (1) 6 (1) 0 (0)
6 (2) 0 (0) 6 (1) 1 (1)
0 (0) 3 (3) 6 (1) 0 (0)
0 (0) 0 (0) 6 (1) 3 (3)
0 (0) 2 (2) 6 (1) 1 (1)
4 (1) 2 (2) 6 (1) 0 (0)
4 (1) 0 (0) 6 (1) 2 (2)
4 (1) 1 (1) 6 (1) 1 (1)
0 (0) 1 (1) 6 (1) 2 (2)
Environmental monitor card
Processor card
Multibus interface card
Multibus interface card
Multibus or ciscoBus interface card
Multibus or ciscoBus interface card
Multibus interface or ciscoBus controller card
Multibus or ciscoBus interface card
Multibus or ciscoBus interface card
ciscoBus
slots
1
2
3
4
5
6
7
8
9
Multibus
slots
2
0
1
3
H2675

ciscoBus Token Ring Card and Applique Installation and Upgrade Instructions 11
Installation Prerequisites
Card and Interface Numbering
The AGS+ uses a card numbering scheme to identify cards in the chassis, and an interface
addressing scheme to identify the ports (interfaces) on each card. Each Multibus interface card and
the ciscoBus controller card (CSC-CCTL2) has a unique card number that you set with switch S1
on each card. Figure 6 shows the location of switch S1 on the CSC-CCTL2. The system processor
uses the card numbers to assign interface addresses to the ports on each card and to control traffic
across the Multibus. Because the CSC-CCTL2 controls the traffic between the Multibus and all
ciscoBus cards, it is the only ciscoBus card that needs a card number. The card number of the
CSC-CCTL2 is always 0, which is the factory default; no Multibus cards can be set for card
number 0. Figure 6 illustrates the correct switch settings for card number 0; all four pins are in the
down (off) position when the CSC-CCTL2 is viewed from the front edge of the card (viewed as
installed in the card cage).
Figure 6 CSC-CCTL2 Switch S1 Set for Unit 0
1. The designator C2 in parentheses indicates that the card has Microcode Version 10.0 or later installed.
ThedesignatorC2notinparenthesesindicatesthatthecardshipswithMicrocodeVersion10.0orlater
by default.
2 (1) 3 (3) 0 (0) 0 (0)
2 (1) 2 (2) 0 (0) 1 (1)
2 (1) 1 (1) 0 (0) 2 (2)
2 (1) 0 (0) 0 (0) 3 (3)
0 (0) 4 (4) 0 (0) 0 (0)
0 (0) 3 (3) 0 (0) 1 (1)
0 (0) 2 (2) 0 (0) 2 (2)
0 (0) 1 (1) 0 (0) 3 (3)
0 (0) 0 (0) 0 (0) 4 (4)
C2CTR
Ports (Cards) C2FCIT/(C2)FCI 1
Ports (Cards) (C2)MEC Ports (Cards) (C2)HSSI Ports (Cards)
U-6
U-55
U-56
H1231a
Switch S1
LEDs
1234

12 ciscoBus Token Ring Card and Applique Installation and Upgrade Instructions
Installation Prerequisites
At startup, the system polls each Multibus interface card, beginning with the lowest card number,
and assigns a sequential interface address to each port (interface) on each card. When all Multibus
interfaces are assigned, the system proceeds to the ciscoBus cards and continues the interface
address sequence as it polls the ciscoBus cards according to the ciscoBus slot priority. (Refer to the
section “Slot Priority” on page 9.)
These numbering schemes allow the system to distinguish each interface card while sequentially
numbering like interfaces (such as Token Ring interfaces on CSC-2Rs and CSC-C2CTRs). Table 3
is an example of how the system assigns Token Ring interface addresses in a chassis with two
CSC-2Rs (two ports each) and two CSC-C2CTRs (four ports each). The CSC-2R is a Multibus card,
and the CSC-C2CTR is a ciscoBus card; therefore, the CSC-2R interface addresses are assigned
first. The example in Table 3 shows the maximum number of 16 Token Ring interfaces allowable in
an AGS+ without exceeding the power budget (also see the section “Compatibility with Other
Cards” on page 15).
Chassis Limitations A maximum number of two CSC-C2CTRs can be installed in an AGS+ chassis. This limit is due to
the internal space available for the APP-LTR2s, which are installed in an applique card cage. Each
APP-LTR2 provides two interface ports; therefore, each CSC-C2CTR requires two APP-LTR2s
when all four ports are used. Since each applique card cage holds two appliques, and a maximum of
two applique card cages can be installed in an AGS+, a maximum of two CSC-C2CTRs and four
APP-LTR2s can be installed in an AGS+. A top-down view of the AGS+ with two card cages
installed is shown in Figure 7.
Table 3 Multibus and ciscoBus Interface Addressing Example
Card Port on Card Interface Address Assigned
First CSC-2R Port 0 Token Ring 0
Port 1 Token Ring 1
Second CSC-2R Port 0 Token Ring 2
Port 1 Token Ring 3
First CSC-C2CTR Port 0 Token Ring 4
Port 1 Token Ring 5
Port 2 Token Ring 6
Port 3 Token Ring 7
Second CSC-C2CTR Port 0 Token Ring 8
Port 1 Token Ring 9
Port 2 Token Ring 10
Port 3 Token Ring 11

ciscoBus Token Ring Card and Applique Installation and Upgrade Instructions 13
Installation Prerequisites
Caution The maximum number of Token Ring interfaces in a chassis is 16, which is the result of
installing 4 CSC-2Rs and 2 CSC-C2CTRs. (Two ciscoBus slots are used as Multibus slots.) The
number of ciscoBus interfaces is limited by space available for applique card cages and power
budget limits. Because the slower Multibus interfaces always have higher priority than ciscoBus
interfaces, traffic on the Multibus may degrade performance of ciscoBus interfaces that are not
autonomously switched; therefore, we do not recommend this configuration for
performance-sensitive applications.
Figure 7 AGS+ Top View
Power Budget In an AGS+ shipped on or after October 1, 1991, the total power drawn by all installed cards must
not exceed 300W per chassis. In AGS+ chassis shipped before October 1, 1991, the total power must
not exceed 260W. (The earlier chassis contained a 5A circuit breaker, rather than the 7.5A circuit
used in the current chassis configuration.) Table 4 lists the power requirements for each card
available for the AGS+, including the CSC-C2CTR. The values for the CSC-C2CTR were measured
with four Token Ring interfaces active and include power drawn by the appliques.
Note In addition to the power budget, other restrictions apply when other ciscoBus interface cards
or Multibus Token Ring interface cards are installed in the system. For compatibility limitations,
refer to the following section, “Compatibility with Other Cards.”
H1260a
Front of chassis
System
card cage
Applique
card cages
MAS-10
blower

14 ciscoBus Token Ring Card and Applique Installation and Upgrade Instructions
Installation Prerequisites
Table 4 Interface Card Power Requirements
Before installing new cards, check the power requirements of the existing system and the new
card(s) to avoid exceeding the power budget. To calculate the power requirements of an existing
system, add the values for each card in the chassis; the sum is the power requirement. To determine
the available power budget, subtract that sum from 300 watts (W) (260W for chassis shipped before
10/1/91); the result is the power budget available for new interface cards. For example, to determine
if you can install two CSC-C2CTRs in an AGS+ that already contains two CSC-MCIs and a
CSC-C2MEC, determine the power requirements of the existing system, then subtract that sum
from 300. Compare the result to the total power requirement of the two new cards. If the result is
greater than the power requirement for the new cards, you can install the new cards without
exceeding the power budget. The following shows a sample calculation to determine whether two
new CSC-CTRs can be added to an AGS+ that already contains several other interface cards. (All
calculations are in watts [W].)
1. Add 4W for each external Ethernet transceiver.
Card Power (Watts)
CSC/3 31
CSC/4 35
CSC-ENVM 10
CSC-MC+ 3
CSC-MCI 281
CSC-SCI 20
CSC-R16M 34
CSC-1R or CSC-2R 30
CSC-CCTL (cannot be used with CSC-C2CTR) 29
CSC-CCTL2 34
CSC-FCI 50
CSC-FCIT 36
CSC-MEC 221
CSC-HSCI 48
CSC-C2CTR with 1 applique (2 ports) 30
CSC-C2CTR with 2 appliques (4 ports) 42
One CSC-ENVM card 1 x 10 = 10
One CSC/4 processor card 1 x 35 = 35
One CSC-CCTL2 card 1 x 34 = 34
One CSC-C2MEC card 1 x 22 = 22
Two CSC-MCI cards 2 x 28 = 56
Ten Ethernet transceivers 10 x 4 = 40
Power requirement of present system 197
Available power budget 300 – 197 = 103
Two CSC-C2CTRs, each with 2 appliques 2 x 42 = 84
New cards within power budget 84 < 103

ciscoBus Token Ring Card and Applique Installation and Upgrade Instructions 15
Installation Prerequisites
Compatibility with Other Cards
The CSC-C2CTR will interoperate with any other CSC-CCTL2-compatible ciscoBus cards (within
the limits specified in the section “ciscoBus Port Limitations” on page 10), and with any Multibus
interface card that is compatible with the current system software. However, as new features are
added with system software releases, the microcode on interface cards may need to be upgraded in
order to take advantage of the new features.
For example, the CSC-C2CTR requires a CSC-CCTL2 ciscoBus controller card and System
Software Release 9.1 or later. (See the section “System Compatibility Requirements” on page 6.) If
you are upgrading your system software and ciscoBus controller card to a CSC-CCTL2 along with
this card installation, you must upgrade the microcode on all existing ciscoBus interfaces to Version
10.0 or later and, to ensure that all the features of a software release are available, and you must
upgrade the microcode on existing Multibus interface cards to the minimum versions required for
Software Release 9.1 compatibility.
The Microcode Release Note publication (Part Number 78-1069-xx, where xx is the latest version)
provides the latest information on both the recommended and minimum required microcode versions
for using all cards with Software Releases 8.2 through 9.1. If the latest version implements features
that you are not using in your system, and you already have the minimum required version installed,
there is no requirement to update the microcode. However, new microcode versions occasionally fix
bugs and provide performance enhancements in addition to implementing new features. You will
obtain maximum performance and reliability by upgrading to the recommended version. Refer to
the latest Microcode Release Note publication for current microcode requirements and
recommendations and for a microcode revision history for each card.
Note To order upgrades or to obtain additional upgrade or compatibility information, contact a
customer service representative as described in the section “Cisco Information Online” on page 35.
To display the current microcode on any interface card, use the show controller command with
appropriate variables (cbus, token, serial, or ethernet). To display the current CSC-ENVM
microcode, use the show environment command (available with Software Release 9.0 and later).
An example of the show controller cbus command is shown on page 7. The following partial
sample display of the show controller mci command shows a CSC-MCI with Microcode
Version 1.10 installed.
router# show cont mci
MCI 1, controller type 1.1, microcode version 1.10
(additional display text omitted from example)
The following partial sample display shows a CSC-ENVM with Microcode Version 2.2 installed.
router# show env
Environmental controller firmware version 2.2
(additional display text omitted from example)
With the required microcode versions installed, the CSC-C2CTR is compatible with the
followingthree currently available Token Ring Multibus interface cards:
•CSC-2R dual-port 4/16-Mbps Token Ring card
•CSC-1R single-port 4/16-Mbps Token Ring card
•CSC-R16M single-port 4/16-Mbps Token Ring card

16 ciscoBus Token Ring Card and Applique Installation and Upgrade Instructions
Installation Prerequisites
Caution The maximum number of Token Ring interfaces in a chassis is 16, which is the result of
installing 4 CSC-2Rs and 2 CSC-C2CTRs. (Two ciscoBus slots are used as Multibus slots.) The
number of ciscoBus interfaces is limited by space available for applique card cages and power
budget limits. Because the slower Multibus interfaces always have higher priority than ciscoBus
interface, traffic on the Multibus may degrade performance of ciscoBus interfaces that are not
autonomously switched; therefore, we do not recommend this configuration for
performance-sensitive applications.
Ring Speed Before installing the CSC-C2CTR, determine the ring speed (4 or 16 Mbps) of each ring to be
connected. There is no factory default for the interface speed; you must use the ring-speed
command to set the speed of each interface when you bring the interface up and insert it into a ring.
The CSC-C2CTR interfaces are independent, and each can be configured for either 4 Mbps or
16 Mbps.
Caution If an interface has an undefined or incorrect ring speed and is not shut down, the ring will
beacon, which effectively takes the ring down and makes it inoperable.
List of Parts Verify that you received all of the following parts. If any parts are missing, contact a customer
service representative.
•ciscoBus Token Ring card: CSC-C2CTR.
•One APP-LTR2 for each two CSC-C2CTR ports (two appliques if you will use all four ports, one
applique if you will use only two ports).
•Applique card cage (MAS-CCG)—one card cage is required for every two appliques. If a card
cage is already installed in your chassis, and it has space available, you need not install another
one.
•Ground straps—the type and number depends on the appliques in the card cage.
•2 or 4 ribbon cables for the internal connections between the applique and CSC-C2CTR ports.
•Two interface port labels for each applique (TR 0, TR 1, and so forth)—These may already be
attached to the applique when you receive it.
•One disposable grounding wrist strap. A disposable wrist strap is included with all new
components and upgrade kits; use it to prevent damage to equipment from electrostatic
discharge.
•If you are upgrading the microcode only, and not installing a new card or applique, you should
receive one replacement EPROM component and a copy of the Microcode Release Note
document.

ciscoBus Token Ring Card and Applique Installation and Upgrade Instructions 17
Installation Prerequisites
Required Tools You need some or all of the following tools to perform installation and upgrade procedures. Before
you begin, read through the procedure to determine which tools you need for your chassis.
•Flat-blade screwdriver: medium-sized (if you are removing the AGS+ front access panel for the
first time).
•Number 1 Phillips screwdriver (for removing the top cover of the chassis and installing the
applique, applique card cage, and ground strap).
•Chip extraction/removal tool (for microcode upgrades only).
•Needlenose pliers (for microcode upgrades only).
•Antistatic mat or antistatic foam pad (only if you are replacing components).
•Wrist strap or other grounding device. A disposable wrist strap is included with the card; use it
to prevent damage to equipment from electrostatic discharge.
Safety Follow these guidelines when working with any electrical equipment:
•Before beginning any procedures requiring access to the chassis interior, turn off the system
power and disconnect the power cord.
•Never assume that power has been disconnected from a circuit; always check.
•Do not work alone when a potentially hazardous condition exists.
•Do not perform any action that creates a potential hazard or makes the equipment unsafe.
•Carefully examine your work area for possible hazards such as moist floors, ungrounded wiring
or power cables, and missing safety grounds.
In addition, use the guidelines that follow when working with any equipment that is connected to
telephone wiring or other network cabling.
•Never install telephone wiring during a lightning storm.
•Never install telephone jacks in wet locations unless the jack is specifically designed for wet
locations.
•Never touch uninsulated telephone wires or terminals unless the telephone line has been
disconnected at the network interface.
•Use caution when installing or modifying telephone lines.

18 ciscoBus Token Ring Card and Applique Installation and Upgrade Instructions
Preventing Electrostatic Discharge Damage
Preventing Electrostatic Discharge Damage
Electrostatic discharge (ESD) is a discharge of stored static electricity that can damage equipment
andimpairelectricalcircuitry.Itoccurswhenelectroniccomponentsareimproperlyhandledandcan
result in complete or intermittent failures.
Following are guidelines for preventing ESD damage:
•Before you open a chassis, ensure that power to the unit is turned off, but that the power cord is
connected to the wall receptacle. Having the power cord connected will ensure a ground path for
any ESD voltages.
•Always use an ESD-preventive wrist or ankle strap and ensure that it makes good skin contact.
•Connect the equipment end of the strap to an unpainted surface of the chassis frame or another
proper grounding point or surface. We recommend that you attach it to the inside bottom of the
chassis, or to the rear panel (inside or outside), without making contact with any connectors or
appliques.
•Avoid contact between equipment and clothing. The wrist or ankle strap only protects the
equipment from ESD voltages on the body; ESD voltages on clothing can still cause damage.
•Handle printed circuit cards and appliques by the edges only; avoid touching the components,
traces, or any connector pins.
•Place a removed card component side up on an antistatic surface or in a static shielding bag. If
the component will be returned to the factory, immediately place it in a static shielding bag.
•Do not remove the wrist or ankle strap until the installation is complete.
Caution For safety, periodically check the resistance value of the antistatic strap. The
measurement should be between 1 and 10 megohms.
Installation The following sections describe the procedures for installing CSC-C2CTRs and APP-LTR2s. The
CSC-C2CTR is installed in the system card cage, which you access by removing the access panel
on the front of the chassis. It is not necessary to disconnect cables from the rear of the chassis or to
remove the top cover of the chassis to access the system card cage.
The APP-LTR2 is installed in the rear of the chassis; access to the rear of the chassis requires
removing the front panel and top cover from the chassis. The appliques are installed in an applique
card cage, which is then installed in one of the two far right connector areas in the rear of the chassis.
A typical installation, showing the interface card, the applique, and the internal connections, is
shown in Figure 1. Before proceeding, ensure that your system and equipment meet the
requirements listed in the section “Installation Prerequisites” on page 6.

ciscoBus Token Ring Card and Applique Installation and Upgrade Instructions 19
Installation
Installing the CSC-C2CTR Interface Card
Install the CSC-C2CTR in the predetermined ciscoBus slot in the system card cage. (Refer to the
section “Slot Priority” on page 9 for slot priority requirements.) The card cage in the AGS+ is
accessible from the front of the chassis. To install system cards, you need to remove only the front
access panel; it is not necessary to remove the top cover. All interface cards have ejector levers that
lock into place when the card is seated in the card cage, which allow the card to be extracted easily
from its slot. Handle cards as little as possible; try to limit contact to only the ejector levers and card
edges. Install the CSC-C2CTR as follows:
Step 1 Ensure that the chassis is firmly seated on a stable surface. The cards that connect to the
ciscoBus require substantial force to slide them into the card cage and seat them properly.
Step 2 On the front access panel (shown in Figure 8), turn the two thumbscrews counterclockwise
to loosen them; do not attempt to remove them from the panel. Pull the panel off the chassis
and set it aside.
Step 3 Slip on an ESD wrist or ankle strap and connect it to the chassis as described in the previous
section, “Preventing Electrostatic Discharge Damage.” Make certain that power to the
chassis is OFF, but that the power cord is fully connected.
Figure 8 Chassis Front Access Panel and Cover Fasteners
Note The front panel is secured with two thumbscrews, which are tightened with 12 in/lb of torque
for shipping. If you are removing the front panel for the first time, use a large flat-blade screwdriver
to turn the thumbscrews counterclockwise to loosen them. When you replace the panel, turn the
thumbscrews clockwise until finger-tight.
Step 4 If necessary, disconnect the cables from other interface cards that are obstructing access to
the center ciscoBus slot. Before disconnecting cables, ensure that they are properly labeled
to avoid mixing up interfaces when you reconnect them.
Thumbscrews (2)
H1096a
Cover screws (7)
Access panel
AGS+
cisco Systems

20 ciscoBus Token Ring Card and Applique Installation and Upgrade Instructions
Installation
Step 5 If you are installing a new CSC-C2CTR, proceed to step 7, but if you are replacing an
existing CSC-C2CTR, disconnect the cables from the front of the card to be removed.
Step 6 Use your thumbs to pull the eject levers out and away from the card edge to loosen it and
pull the card out of its slot. Place the removed card on an antistatic mat or antistatic foam
pad.
Step 7 Hold the new CSC-C2CTR by the eject levers and the card edges, component side up, with
the bus edge away from you, and insert it into any empty ciscoBus slot. An AGS+ card cage
is shown in Figure 5.
Step 8 Place your thumbs on the eject levers and push the card in firmly until it snaps into place
and is firmly seated in the slot.
Step 9 If APP-LTR2s are already installed, connect the internal ribbon cables to the ports
corresponding to the labels on the cables (0–3). When viewing the card in the card cage,
the far left port is port 0.
Step 10 To install the APP-LTR2(s), proceed to the next section.
or
If the appliques are already installed, proceed to the section “Installing Short Ground
Straps” on page 23 or “Installing Long Ground Straps” on page 24.
Installing the APP-LTR2 Applique
The APP-LTR2 is installed in an applique card cage in the rear of the chassis; access to the rear of
thechassisrequires removingthefrontpaneland top coverfrom the chassis. The following describes
how to first install the applique in the applique card cage and then install the card cage in the chassis.
Warning Before removing any cables or fasteners from the chassis, turn off the power and unplug
the power cable from the power source. When the cover is off the chassis, the power supply is
exposed and dangerous voltages are present.
Installing the APP-LTR2 in the Applique Card Cage
The following steps describe how to install the applique in the applique card cage:
Step 1 Remove the top cover of the chassis by loosening and removing the seven screws that
secure it. (See Figure 8.)
Step 2 Slip on an ESD-preventive wrist or ankle strap and connect it to the chassis as described in
the section “Preventing Electrostatic Discharge Damage.” Make certain that power to the
chassis is OFF, but that the power cord is fully connected.
Step 3 If you have an empty card cage that is not installed in the chassis, proceed to step 5, but if
the applique card cage is installed in the chassis, disconnect any external connections to the
applique it contains.
Step 4 Remove the card cage from the chassis by removing the six screws that secure it to the rear
panel of the chassis. Carefully lift the card cage up and out of the chassis, using care not to
strain any internal ribbon cables.