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This chapter describes the AS54-DFC-CT3 dial feature card and includes the following sections:
You can install an AS54-DFC-CT3 in any carrier slot of the access server chassis.
The AS54-DFC-CT3 provides physical line termination for a channelized T3 ingress trunk line. It uses an onboard multiplexer to multiplex 28 channelized T1 lines into a single channelized T3 line.
The DFC provides physical line termination for up to 672 DS0 channels and uses onboard HDLC controllers to terminate digital (ISDN) calls up to 248 DS0 channels.
You can use the bantam jacks on the DFC to monitor a T1 line or test any one of the individual T1 circuits in drop and insert mode.
To remove a DFC without dropping any calls or connections, first take the DFC out of service by using the busyout command to busyout the DFC. The busyout command is executed on a per DFC basis.
If you have active calls on the DFC after executing the busyout command, wait for the calls to drop. If you do not want to wait for the calls to drop, use the clear port command to clear all active calls.
Prior to using the clear port command, use the show control command to check the particular slot/port on the AS54-DFC-108NP being used by the active calls.
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Caution To avoid erroneous failure messages, remove or insert only one DFC at a time. |
The busyout command has the format busyout slot-number, where slot-number is the DFC slot number 1 to 7. Slot 0 is a dedicated slot for the motherboard. The following example shows how to busy-out the card in slot:
5400# busyout 1
When you replace a DFC with a new DFC of the same type in the same slot, the system software will recognize the new trunk interfaces and bring them up automatically.
If you replace the exisiting DFC with a new DFC of a different type, you will have to reconfigure the system. For configuration details, refer to the Cisco AS5400 Universal Access Server Software Configuration Guide. For information on NextPort Cisco IOS CLI commands, refer to NextPort Service Management for Cisco AS5400 Access Servers.
To remove the AS54-DFC-CT3 card with active calls, follow these steps:
Step 2 Initialize the software busyout procedure by entering the following command in privileged EXEC mode:
5400# busyout slot-number
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Note The OK/MAINT LED is green before you enter the busyout command. After you enter the busyout command, the LED changes to yellow. The LED turns off after all calls are disconnected and resources taken out of service, indicating that busyout is complete. |
Step 3 Enter the show busyout command to check busyout status for that particular slot.
Use the show controller command to find the particular slot/port on the 108NP card being used for active calls on the slot.
5400# show controller t1/e1 slot-number/control-number time-slot
Step 4 Use the clear port command to clear all calls on all ports associated with that particular slot.
5400# clear port slot-number/port-number
Step 5 Verify that the OIR/MAINT LED is off; this indicates that the DFC is offline and ready to be removed.
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Note OIR of AS54-DFC-CT3 is similar to AS54-DFC-8CT1/CE1. To see an example of the output during online insertion and removal of the AS54-DFC-8CE1 card, refer to "AS54-DFC-8CT1/CE1 Card." |
Step 6 Attach an ESD preventive wrist strap.
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Warning Do not work on the system or connect or disconnect cables during periods of lightning activity. To see translations of the warnings that appear in this publication, refer to the Regulatory Compliance and Safety Information document that accompanied this device. |
Step 7 Loosen the two captive screws that secure the DFC to the chassis until each screw is free of the chassis.
Step 8 Grasp the DFC handle with one hand and pull the card toward you until the card slides free of the chassis. Grasp the ventilated metal cover with your other hand to support and guide the DFC out of the slot.
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Caution Avoid touching any pins or circuit board components during removal and installation of the DFC. |
Step 9 After you remove the DFC out of the chassis, set it aside on an ESD-preventive mat.
This completes the DFC removal procedure.
To remove the AS54-DFC-CT3 card without active calls, follow the steps below:
Step 2 Initialize the software busyout procedure by entering the following command in privileged EXEC mode:
busyout slot-number
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Note The OK/MAINT LED is green before you enter the busyout command. After you enter the busyout command, the LED changes to yellow. The LED turns off after busyout is complete. |
Step 3 Verify that the OIR/MAINT LED is off; this indicates that the DFC is offline and ready to be removed.
Step 4 Attach an ESD preventive wrist strap.
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Warning Before opening the chassis, disconnect the telephone-network cables to avoid contact with telephone-network voltages. To see translations of the warnings that appear in this publication, refer to the Regulatory Compliance and Safety Information document that accompanied this device. |
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Warning Do not work on the system or connect or disconnect cables during periods of lightning activity. To see translations of the warnings that appear in this publication, refer to the Regulatory Compliance and Safety Information document that accompanied this device. |
Step 5 Loosen the two captive screws that secure the DFC to the chassis until each screw is free of the chassis.
Step 6 Disconnect all interface cables from the DFC and secure them out of the way.
Step 7 Grasp the DFC handle with one hand and pull the card toward you until the card slides free of the chassis. Grasp the ventilated metal cover with your other hand to support and guide the DFC out of the slot.
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Caution Avoid touching any pins or circuit board components during removal and installation of a DFC. |
Step 8 After you remove the DFC out of the chassis, set it aside on an ESD-preventive mat.
Step 9 If a DFC slot on the carrier card is to remain empty, install a blank cover over the open DFC slot to ensure proper airflow inside the chassis.
This completes the DFC removal procedure.
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Warning Do not work on the system or connect or disconnect cables during periods of lightning activity. To see translations of the warnings that appear in this publication, refer to the Regulatory Compliance and Safety Information document that accompanied this device. |
To install the AS54-DFC-CT3 card, follow these steps:
Step 2 Carefully align the DFC with the grooves in the DFC slot. Avoid touching the circuitry or any connector pins.
Step 3 Slide the DFC into the slot until the connector pins make contact with the carrier card backplane connector.
Step 4 Seat the DFC in the carrier by pushing the card firmly until the captive screws are aligned with their holes.
Step 5 Tighten the screws to secure the DFC to the chassis.
Step 6 If a DFC slot on the carrier card is to remain empty, install a blank cover over the open DFC slot to ensure proper airflow inside the chassis.
This completes the DFC installation procedure.
Posted: Wed Aug 23 13:00:13 PDT 2000
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