Table Of Contents
Dial Feature Card and Carrier Card Guidelines
Overview
Online Insertion and Removal (OIR) of DFCs
Removing and Installing Populated Carrier Cards
Removing a Populated Carrier Card
Installing a Populated Carrier Card
Getting Help
Where to Go Next
Dial Feature Card and Carrier Card Guidelines
This chapter includes the following sections:
•
Overview
•Online Insertion and Removal (OIR) of DFCs
•Removing and Installing Populated Carrier Cards
•Getting Help
•Where to Go Next
Overview
Cisco AS5350 Chassis
The Cisco AS5350 universal gateway chassis has a motherboard, high-speed backplane, and two backplane slots. One backplane slot accepts one dial feature card (DFC) carrier card and the other backplane slot accepts one DFC.
Cisco AS5400 Chassis
The Cisco AS5400 universal gateway chassis has a motherboard, high-speed backplane, and four backplane slots. Three backplane slots accept DFC carrier cards and the other backplane slot accepts one DFC.
Dial Feature Cards
Each DFC carrier card accepts two DFCs which allow online insertion and removal (OIR). (See Figure 2-1.)
Each DFC is a 5.1 x 13 inch PCI based interface board. The following is a brief description of the trunk types supported:
•North American robbed-bit signaling (RBS) is supported on T1 trunks, including a variety of North American RBS protocol, framing, and encoding types on these trunks.
•CAS is supported for E1 trunks, with R2 signaling.
•Many countries require an E1 R2 variant. Per-country defaults are provided for supervisory and inter-register signaling.
•The CT3 DFC provides physical line termination for a channelized T3 ingress trunk line, and it uses an onboard multiplexer to multiplex 28 channelized T1 lines into a single channelized T3 line.
•Universal access (analog modem or digital calls) is supported when an interface is configured for ISDN PRI signaling. PRI signaling is available for both T1 and E1 trunks.
In any single DFC slot, you can install your choice of:
•One T1, E1, or T3 dial feature card
•One universal port card
Online Insertion and Removal (OIR) of DFCs
All DFCs on the Cisco AS5350 and Cisco AS5400 chassis support online insertion and removal (also known as hot swapping). You can install, remove, replace, and rearrange the DFCs without turning off the chassis power.
When the chassis detects that a DFC is installed or removed, it automatically runs diagnostic and discovery routines, acknowledges the presence or absence of the DFC, and resumes chassis operation without any operator intervention.
See:
•Chapter 3, "T1 and E1 Dial Feature Cards," to perform OIR of the T1 or E1 DFC.
•"T3 Dial Feature Card," to perform OIR of the T3 DFC.
•Chapter 5, "Universal Port Dial Feature Card," to perform OIR of the universal port DFC.
Removing and Installing Populated Carrier Cards
Caution The carrier cards that carry the DFCs are not hot swappable. Removing a card while the system is still powered on may cause permanent damage to electronic circuits on the card.
The DFC carrier card plugs into one of the backplane slots and supports two DFCs. The carrier card increases backplane capacity and allows OIR of the DFCs. (See Figure 2-1.)
Figure 2-1 Carrier Card With Two 8 PRI CT1 Cards
Warning Before working on a chassis or working near power supplies, unplug the power cord on AC units; disconnect the power at the circuit breaker on DC units. To see translations of the warnings that appear in this publication, refer to the Regulatory Compliance and Safety Information document that accompanied this device.
Warning Before performing any of the following procedures, ensure that power is removed from the DC circuit. To ensure that all power is OFF, locate the circuit breaker on the panel board that services the DC circuit, switch the circuit breaker to the OFF position, and tape the switch handle of the circuit breaker in the OFF position. To see translations of the warnings that appear in this publication, refer to the Regulatory Compliance and Safety Information document that accompanied this device.
Removing a Populated Carrier Card
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.
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 remove a populated carrier card, follow the steps below:
Step 1 Power off the chassis.
Step 2 Disconnect all interface cables from the universal gateway and secure them out of the way.
Step 3 Loosen the two captive screws that secure the carrier card to the chassis until each screw is free of the chassis. (See Figure 2-2 and Figure 2-3.)
Figure 2-2 Loosen the Captive Screws on the Cisco AS5350
Figure 2-3 Loosen the Captive Screws on the Cisco AS5400
Step 4 Grasp the DFC handles and gently pull toward you to guide the carrier card out of the slot. Place one hand under the carrier card as you pull it out of the chassis. (See Figure 2-4 and Figure 2-5.)
Note Use the DFC handles to remove the carrier card. Ensure that the DFCs are secured to the carrier card.
Figure 2-4 Removing the Carrier Card from the Cisco AS5350
Figure 2-5 Removing the Carrier Card from the Cisco AS5400
Step 5 After you remove the carrier card from the chassis, set it aside on an ESD-preventive mat.
Step 6 If the backplane slot is to remain empty, install a blank cover over the open slot to ensure proper airflow inside the chassis. (See Figure 2-6.)
Figure 2-6 Blank Filler Panel
Installing a Populated Carrier Card
To install a populated carrier card:
Step 1 Slide the carrier card into the slot until it touches the backplane connector. (See Figure 2-7 and Figure 2-8.)
Figure 2-7 Install the Carrier Card in the Cisco AS5350
Figure 2-8 Install the Carrier Card in the Cisco AS5400
Step 2 Align the captive screws with their holes, and seat the card completely.
Step 3 Tighten the two captive screws to secure the carrier card to the chassis. (See Figure 2-9 and Figure 2-10.)
Figure 2-9 Tighten the Captive Screws on the Cisco AS5350
Figure 2-10 Tighten the Captive Screws on the Cisco AS5400
Step 4 If the carrier card has a blank DFC slot, install a blank cover over the open DFC slot to ensure proper airflow inside the chassis. (See Figure 2-11.)
Figure 2-11 Blank DFC Cover
Step 5 For AC powered units, reconnect the AC power cord. For DC powered units, remove the tape from the circuit breaker switch handle, and reinstate power by moving the handle of the circuit breaker to the ON position. For more information on the AC and DC power supplies, refer to the chassis installation guide that came with your universal gateway.
Step 6 Reconnect all interface cables.
Getting Help
For information about technical support, onsite service, and exchange and repair services, refer to the "Obtaining Technical Assistance" section on page -xii in the "Preface."
Where to Go Next
For instructions on installing and removing dial feature cards, refer to:
•Chapter 3, "T1 and E1 Dial Feature Cards."
•"T3 Dial Feature Card."
•Chapter 5, "Universal Port Dial Feature Card."
•"Troubleshooting."
•"Cabling Specifications."
