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Installing and Configuring
the Hardware Type 1.1 CSC-MCI Card
Product Numbers: CSC-1E=, CSC-1S=, CSC-1T=, CSC-2S=, CSC-2T=, CSC-1E1S=, CSC-1E1T=, CSC-1E2S=, CSC-1E2T=, CSC-1E1S1T=, CSC-1E1T1S=, CSC-2E=, CSC-2E1S=, CSC-2E1T=, CSC-2E2S=, CSC-2E2T=, CSC-2E1S1T=, and CSC-2E1T1S=
The Multiport Communications Interface (MCI) card, hardware type 1.1 (or Revision 3), provides up to two Ethernet ports and one 50-pin connector that supports up to two synchronous serial ports by means of a split 50-pin cable and ribbon connector. The CSC-MCI card also supports the CSC-MC nonvolatile random access memory (NVRAM) card for storing configurations, and the CSC-MC+ Flash memory and NVRAM card. These NVRAM cards attach to the CSC-MCI card by way of a special 50-pin NVRAM connector located just behind the Ethernet connectors.
(See Figure 1.)
No special configuration changes are necessary on the CSC-MCI card when using a NVRAM card, and such use does not affect the performance of the card.
Figure 1 CSC-MCI Card Hardware Type 1.1---Component-Side View
The Ethernet ports support Ethernet Versions 1 and 2 and IEEE 802.3. The serial ports can be ordered with software support for low-speed (up to 64-megabytes [MB]) or high-speed (down to 4-kilobytes [kB]) data rates.
After installation you can obtain information about your CSC-MCI card using the EXEC command show controller mci. The output displays the hardware type and microcode version, along with information about the configuration of each port on the card.
Electrostatic discharge (ESD) is a discharge of stored static electricity that can damage equipment and impair electrical circuitry. It occurs when electronic components are improperly handled and can result in complete or intermittent failures.
Following are guidelines for preventing ESD damage:
Table 1 and Table 2 list the number of CSC-MCI cards that can be used per chassis.
Table 1 Number of CSC-MCI Interfaces per Chassis
| Chassis | No. of Controllers |
|---|---|
| AGS+ | 7 |
| AGS | 4 |
| MGS | 2 |
| CGS | 1 |
| CPT | 1(1) |
Table 2 Number of CSC-R Interfaces per Chassis
| Chassis | No. of Controllers |
|---|---|
| AGS+ | 3 |
| AGS | 4 |
| MGS | 1 |
CSC-MCI cards can combine up to two high-speed serial ports (designated with T) or up to two low-speed serial ports (designated with S), and up to two Ethernet ports (designated with E). These interface combinations are referenced in the Cisco Systems Product Catalogue by designations such as CSC-1E1T. Table 3 lists these CSC-MCI card combinations.
Table 3 CSC-MCI Card Interface Combinations
| CSC-MCI Card | Interface Combinations |
|---|---|
| CSC-1E | 1 Ethernet |
| CSC-2E | 2 Ethernet |
| CSC-1S | 1 low-speed synchronous serial |
| CSC-1T | 1 high-speed synchronous serial |
| CSC-2S | 2 low-speed synchronous serial |
| CSC-2T | 2 high-speed synchronous serial |
| CSC-1E1S | 1 Ethernet, 1 low-speed synchronous serial port |
| CSC-1E1T | 1 Ethernet, 1 high-speed synchronous serial port |
| CSC-1E2S | 1 Ethernet, 2 low-speed synchronous serial ports |
| CSC-1E2T | 1 Ethernet, 2 high-speed synchronous serial ports |
| CSC-2E1S | 2 Ethernet, 1 low-speed synchronous serial port |
| CSC-2E1T | 2 Ethernet, 1 high-speed synchronous serial port |
| CSC-2E2S | 2 Ethernet, 2 low-speed synchronous serial ports |
| CSC-2E2T | 2 Ethernet, 2 high-speed synchronous serial ports |
| CSC-1E1S1T | 1 Ethernet, 1 low- and 1 high-speed synchronous serial port |
| CSC-2E1S1T | 2 Ethernet, 1 low- and 1 high-speed synchronous serial port |
| CSC-1E1T1S | 1 Ethernet, 1 low- and 1 high-speed synchronous serial port |
| CSC-2E1T1S | 2 Ethernet, 1 low- and 1 high-speed synchronous serial port |
The following sections discuss the various configuration changes you can make to the CSC-MCI cards. Card numbers are assigned by setting a dual inline package (DIP) switch (S1). For the CSC-MCI card, the card-numbering switch (S1) is located toward the back of the card. (See
Figure 1.)
Table 4 and Table 5 show the switch (S1) settings for card numbering the CSC-MCI card in the MGS and A-type chassis, respectively. Because only one interface card slot is available in the C chassis, card number 0 is used. The card numbers within the set of CSC-MCI cards installed in the chassis must be unique. These card numbers must also be unique among the other cards installed.
Table 4 Switch (S1) Settings for Card Numbering in the MGS Chassis
| Card No.(1) | S1-1 | S1-2 | S1-3 | S1-4 |
|---|---|---|---|---|
| 0 | Off | Off | Off | Off |
| 1 | Off | Off | Off | On |
| 2 | Off | Off | On | Off |
Table 5 Switch (S1) Settings for Card Numbering in the A-Type Chassis
| Card No. | S1-1 | S1-2 | S1-3 | S1-4 |
|---|---|---|---|---|
| 0(1) | Off | Off | Off | Off |
| 1 | Off | Off | Off | On |
| 2 | Off | Off | On | Off |
| 3 | Off | Off | On | On |
| 4 | Off | On | Off | Off |
| 5 | Off | On | Off | On |
| 6 | Off | On | On | Off |
| 7 | Off | On | On | On |
Jumpers W51 and W41 control the serial ports 0 and 1 in data communications equipment (DCE) mode. In addition to changing these jumpers for DCE operation, you must also configure the clock rate on the serial interface of the interface card using the clockrate speed interface subcommand (where speed is the bit rate of the interface in bits per second [bps]). The applique must be DCE (or configured as DCE) to generate the clock signals.
Following is sample output of the clockrate speed command:
Router# configure terminal Enter configuration commands, one per line. Edit with DELETE, CRTL/W, and CRTL/U;end with CTRL/Z interface serial 0 clockrate 64000 ^Z Router# write memory [ok] Router#
The no clockrate command removes the clock rate if DTE mode is desired. Refer to the appropriate configuration and reference publication for more information on these commands. Following are the acceptable clockrate speed settings appearing as they are entered with the clockrate speed command:
1200, 2400, 4800, 9600, 19200, 38400, 56000, 64000, 72000, 125000, 148000, 500000, 800000, 1000000, 1300000, 2000000, and 4000000
The fastest speeds might not work if your cable is too long. Speeds faster than 148 kilobits per second (kbps) are not recommended for RS-232 or RS-232 SDLC signaling. It is recommended that you use the RS-232 and RS-232 SDLC appliques only at speeds up to 64 kbps; for speeds above this, use RS-449, HD V.35, and X.21.
Most data terminal equipment (DTE) interfaces require a Normal External Transmit Clock signal. All DCE interfaces require an Internal Transmit Clock (noninverted) signal. The CSC-MCI card clocking options are controlled by jumper areas W40 through W53. Occasionally, delays occur between the Serial Clock Transmit External (SCTE) clock and the transmitted data that may push the data transition out to the point where using an inverted clock is appropriate (jumpers W42 and W52); however, an inverted clock is not recommended.
Typical delays indicate that the inverted clock may be appropriate above 1.3 megabits per
second (Mbps), depending upon the DTE clock-to-data skews and setup required, and allowing some margin for temperature, cable, and other variables. Some DCE devices will not accept SCTE, so Serial Clock Transmit (SCT) must be used. Inverting the clock may be the only way to compensate for the cable length and circuit delays in the DTE and DCE.
Table 6 lists the jumper settings for the CSC-MCI clock options. The last two columns of the table (DTE and DCE) indicate the setting that should be used with either a DTE or DCE applique. Unless specifically noted, all products are shipped with the factory default setting to work with the DTE applique, which requires external clocking; the channel service unit/digital service unit (CSU/DSU) provides the clocking for the circuit.
Table 6 Jumper Settings for Clock Options
| Jumper Pair | Signal Description | Interface | DTE | DCE |
|---|---|---|---|---|
| W53 | Normal External Transmit Clock | Serial 0 | X(1) | -- |
| W52 | Inverted External Transmit Clock | Serial 0 | x | -- |
| W51 | Normal Internal Transmit Clock | Serial 0 | -- | X |
| W50 | Inverted Internal Transmit Clock | Serial 0 | -- | x |
| W43 | Normal External Transmit Clock | Serial 1 | X1 | -- |
| W42 | Inverted External Transmit Clock | Serial 1 | x | -- |
| W41 | Normal Internal Transmit Clock | Serial 1 | -- | X |
| W40 | Inverted Internal Transmit Clock | Serial 1 | -- | x |
The CSC-MCI card provides up to two Ethernet ports and uses grounding options to accommodate the differences between the Ethernet Version 1 and IEEE 802.3 electrical specifications. Ethernet Version 1 permits certain signals to float, whereas IEEE 802.3 requires the signals to be grounded. Table 7 lists the CSC-MCI grounding options. Inserting a jumper grounds the signal and removing a jumper allows the signal to float. The factory default is to ground all signal pairs, which is compatible with both Ethernet and IEEE 802.3 requirements.
Table 7 Jumper Settings for Grounding Options
| Jumper Pair | Signal Description | Interface |
|---|---|---|
| W90 | Receive Pair Shield | First Ethernet |
| W91 | Transmit Pair Shield | First Ethernet |
| W92 | Power Pair Shield | First Ethernet |
| W60 | Power Pair Shield | Second Ethernet |
| W61 | Transmit Pair Shield | Second Ethernet |
| W62 | Receive Pair Shield | Second Ethernet |
On the CSC-MCI card, jumpers W94 and W93 are 3-pin jumpers that select between Ethernet and IEEE 802.3 electrical levels. Jumper W94 controls the first Ethernet port, and jumper W93 controls the second Ethernet port. The factory default is to select IEEE 802.3 (Ethernet Version 2). Using the card orientation shown in Figure 1, on page 1, place a jumper on the lower pair of pins to select Ethernet Version 1.
To access the cards or the rest of the chassis components, you must access the chassis interior by removing the front panel or top cover. The following procedures include instructions for both. Following are the procedures for your chassis model.
The following tools are required for accessing the chassis interior:
Following is the procedure for accessing the A-type chassis interior.
Figure 2 Chassis Front and Top Panels
Following is the procedure for accessing the MGS chassis interior.
Figure 3 Screw Locations on the MGS Chassis Exterior---Side View
Following is the procedure for accessing the C chassis interior.
Figure 4 Screw Locations on the C Chassis Exterior---Side View
Following is the procedure for installing the CSC-MCI card in a chassis as follows:
The CSC-MCI card contains a bank of 16 LEDs. (Four are currently used.) Table 8 lists the LEDs that are used and the serial and Ethernet port each LED represents. LED 0 is at the left end of each block of four LEDs (as you view the front edge of the card in the system card cage---shown in
Figure 5). At startup, all LEDs flash and then only those LEDs that indicate active interfaces will stay on. A problem is indicated if all LEDs remain on after the system boots, or if the LED of a specific interface does not stay on after the system boots.
Table 8 CSC-MCI Card LED Indicators
| LED | Interface Port |
|---|---|
| 0 | Ethernet 0 |
| 4 | Serial 0 |
| 8 | Ethernet 1 |
| 12 | Serial 1 |
When the indicated LED is on, Carrier Detect (CD) is present on that serial interface, and the interface is enabled. In Ethernet systems, this means that the interface is attached to the Multibus correctly, but is not an indication of complete functionality.
Figure 5 CSC-MCI Card LED Indicators---Partial Front-Edge View
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