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The T1/E1 PSTN Interface card is a TNV1 compliant digital interface card with integrated Channel Service Unit (CSU) function for direct connection to outside plant wiring. This card has board-mounted protection circuits for electrical isolation and protection against power crossing, lightning surges and hazardous voltages.
Card Port Versions
The T1/E1 PSTN Interface card offers 8 T1/E1 ports; the number of active ports is dependent upon licensing. For more information, see Node-Locked Licensing. The 8-port card is shown below; all T1/E1 ports on the card have identical electrical circuit design.
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# | Name | Description | ||
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1 | Port 1-4 Status | Displays the status of ports 1 through 4. | ||
2 | Ports 1-4 | Physical ISDN ports 1 through 4. | ||
3 | Port 5-8 Status | Displays the status of ports 5 through 8. | ||
4 | Ports 5-8 | Physical ISDN ports 5 through 8. | ||
5 | Hot Swap | Displays Hot Swap status of the interface card.
For more information on inserting and removing interface cards, see Inserting and Removing Interface Cards. |
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Port Status LEDs
Each T1/E1 port on the T1/E1 PSTN Interface card has an LED to indicate its operational status. The status states are described below:
Color | Status | Description | ||||
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Off | No Signal | Indicates the port is not connected or connected cable is not providing a signal. Connect a cable or check the far-end connection. | ||||
Green | Link Up | Indicates the port is operating normally. | ||||
Red | LOF | Indicates the port has a Loss Of Framing (LOF) error. A cable is connected, but the
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Amber | Yellow | Indicates there is a problem with the far-end connection. This status is usually communicated from remote side and indicates the
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Hot Swap Status LED
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Dimensions and Weight
| Card | Height mm/in. (PCB only) | Width mm/in. (PCB only) | Height mm/in. (Includes Connector overhang) | Width mm/in. (Includes Connector overhang) | Total Weight (lbs) |
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| T1/E1 PSTN | 200.0/7.87 | 275.0/10.83 | 249.7/9.83 | 307.5/12.11 | 0.8 |
Environmental Ranges (Operation and Storage)
Environmental Parameter | Specification |
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Operating Environmental Conditions | Temperature: 5º to 40º Celsius |
Storage Environmental Condition | Temperature: -40º to 70º Celsius |
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T1/E1 Port Pinouts
The T1/E1 ports are connected to the public network using 4-wire shielded 26 AWG or larger twisted pair telecommunication line cords with RJ-48C or RJ-45 connectors.
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T1/E1 Connector Pinouts
| Pin Number | Description |
|---|---|
| 1 | Receive Ring |
| 2 | Receive Tip |
| 3 | no connection |
| 4 | Transmit Ring |
| 5 | Transmit Tip |
| 6 | no connection |
| 7 | no connection |
| 8 | no connection |
Overview
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