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VDAC-ONE Card - See Model Numbers

Description

The Voice Data Access Concentrator (VDAC-ONE) card performs two-way conversion between circuit-switched data and packet-switched Ethernet data and supports packetized voice applications.

Microprocessor

The main board has a PowerQUICC 860 processor, with 64 MB of external synchronous SDRAM and 1 MB of Flash memory. A fully-populated VDAC-ONE card has a total of 37 processors. Only the PowerQUICC 860 communicates with the Matrix/CPU card.

Time Division Multiplex

The main board has its own Time Division Multiplex (TDM) controller, which transfers data between a dedicated Line-to-Switch Data (LSD) bus and the Digital Signal Processors (DSPs) on the card.

Ethernet Switch

It also has an Ethernet switch with eight 10 MB ports and two 100 Mb ports that pass through the midplane to a VDAC-ONE I/O card. Dedicated, full duplex Ethernet connections run from the Ethernet switch to the PowerQUICC 850 on each VoIP module.

VoIP Modules

The main board can hold up to four VoIP modules, each of which has its own PowerQUICC 850 processor and its own IP Address. The PowerQUICC 850 manages the RTP/RTCP packets, as well as the DSPs on the local VoIP module. The PowerQUICC 850 has 16 MB of SDRAM, with 1 MB in Flash memory.

Each VoIP module can hold up to eight DSPs. Each DSP has its own serial link for PCM data, and 64K x 16 of SDRAM. A TDM switch allows data transfer between the DSPs and the TDM bus. Each DSP supports five simultaneous voice channels, so a VoIP module (with eight DSPs) can support 40 channels. A fully-populated card (with 32 DSPs) can support a total of 160 channels.

N+1 Redundancy

The VDAC-ONE card uses resource pooling, and does not support true N+1 redundancy.

Remote Access Server Support

The VDAC-ONE card does not support the Remote Access Server (RAS).

Placement

Each CSP 2090, CSP 2110 or CSP 2040 chassis accommodate VDAC-ONE cards which reside in the front slots.

Configuration Information

The part number, serial number, model number, and revision are located on the back of the board.

Specifications

The VDAC-ONE card is designed to the following electrical, physical and environmental specifications.

Electrical | Specification
--- | ---
Supply Voltage, Vcc | 5.00V
Supply Current, Vcc @ 5.0V | 6.30A (typical) with four modules
2.56A (typical) with no modules

Physical | Specification
--- | ---
Height | 236.2 mm (9.3 in.)
Depth | 317.5 mm (12.5 in.)
Width | 19.7 mm (0.775 in.)

Environmental | Specification
--- | ---
Temperature - Storage | -40~C to 70~C (-40~F to 158~F)
Temperature - Operation | 0~C to 50~C (32~F to 122~F)
Temperature Shock - Storage | -40~C to 70~C to -40~C (-40~F to 158~F to -40~F) @ 5~/min.
Temperature Shock - Operation | 0~C to 50~C (32~F to 122~F) @ 10~/min.
Humidity - Operating | 5% to 85%
Altitude | Up to 4000 m (13,123 ft.)

VDAC-ONE Card Models

The available VDAC-ONE card models are listed below.

Product | Model No. | RoHS Model No.
--- | --- | ---
VDAC-ONE with (2) VoIP Modules | EXS-VDC-1023 | EXS-VDC-1023R
VDAC-ONE with (4) VoIP Modules | EXS-VDC-1043 | EXS-VDC-1043R

Related Products

The products related to the VDAC-ONE card are listed below.

Product | Model No. | RoHS Model No.
--- | --- | ---
VDAC I/O Card | EXS-VIO-1000 | EXS-VIO-1000R

Front View

The front view shows the LEDs, push button switches and Monitor connector.

Controls and Indicators

The table below describes the LEDs and push button switches as shown in the front view of the card.

LED | Color/Status | Description
--- | --- | ---
Diag | Green | This LED is green except during a card reset when this LED goes out briefly. This LED is normally OFF.
Status | Red | The Stop push button has been pressed. The card is disconnected from the system buses.
Green | The card is connected to the system buses.
Off | The card is resetting.
Halt | Red | The CPU has halted. This LED is red briefly during card reset.
Green | The CPU is running.
Power | Red | Upon insertion
Green | The card is In Service.
Off | The card is Out Of Service.
Active Enet LEDs | Color/Status | Description
1 VoIP Module 1 | Steady Green | Default
| Flashing Green | Normal Activity
2 VoIP Module 2 | Steady Green | Default
| Flashing Green | Normal Activity
3 VoIP Module 3 | Steady Green | Default
| Flashing Green | Normal Activity
4 VoIP Module 4 | Steady Green | Default
| Flashing Green | Normal Activity
5 Main Board | Steady Green | Default
| Flashing Green | Normal Activity
6 Reserved |  |
7 Reserved |  |
8 Reserved |  |

Push Button | Description |
Stop | Removes card from the system buses. Always press the Stop push button before removing the card from the chassis.
Stop and Reset together | Initiates a Hard Reset. The Flash and SDRAM are reset, as is the processor and all of its internal registers. A Hard Reset also occurs when the Watchdog times out twice in a row.
Reset | Initiates a Soft Reset. The code running on the processor is reset, and the Flash is put into a read state.

DIP Switch 1 on Main Board

The table below describes the DIP switch 1 settings. The shading (asterisk* for html documents) indicates factory-installed settings.

Position | Setting | Function
--- | --- | ---
1 | ON* | Disables Debug 1 Mode
OFF | Enables Debug 1 Mode (printing)
2 | ON | Selects 9600 baud for Monitor port
OFF* | Selects 19200 baud for Monitor port
3 | ON* | Disables Debug 2 Mode
OFF | Enables Debug 2 Mode
4 | ON* | Reserved, normally should be ON
OFF | Reserved
5 | ON* | Reserved, normally should be ON
OFF | Reserved
6 | ON* | Reserved, normally should be ON
OFF | Reserved
7 | ON | Reserved, normally should be ON
OFF* | Reserved, normally should be OFF
8 | ON | Reserved, normally should be ON
OFF* | Reserved, normally should be OFF

DIP Switch 1 on VoIP Modules

The table below describes the DIP switch 1 settings. The shading (asterisk* for html documents) indicates factory-installed settings.

Position | Setting | Function
--- | --- | ---
1 | ON* | Disables Debug Printing
OFF | Enables Debug Printing
2 | ON | Reserved
OFF* | Reserved, normally should be OFF.
3 | ON* | Disables Debug Mode
OFF | Enables Debug Mode
4 | ON* | Hardware Watchdog Enable
OFF | Hardware Watchdog Disable

Jumpers

The table below indicates the jumper settings.

Jumper | Setting | Description
--- | --- | ---
JP1 | Not Installed (default) | Factory use only
JP2 | Installed (default) | Factory use only
JP3 | Not Installed (default) | Factory use only
JP4 | Installed (default) | Factory use only
JP5 | Not Installed (default) | Hardware Watchdog Timer enabled
JP6 | Not Installed (default) | Factory use only
JP7 | Not Installed (default) | Factory use only
JP8 | Installed (default) | Factory use only
JP9 | Not Installed (default) | Factory use only
JP10 | Installed (default) | Factory use only
J1 | Not Installed (default) | Factory use only
J3 | Installed (default) | Factory use only

Side View

The side view shows the DIP switches and jumpers.

The protocol used in most local area PC networks. Typically, most Ethernet networks support data transmission speeds up to 10 Mbps, but 100 Mbps is also possible.
Quick depress and release of the phone plunger of a handset to signal the PBX or Centrex of instructions to follow (e.g., Call Transfer).
See Time Division Multiplexing.
Voice over Internet Protocol. The delivery of voice information in digital form in discrete packets rather than in the traditional circuit-committed protocols of the public-switched telephone network (PSTN).
Internet Protocol. Part of the TCP/IP family of protocols used to route messages and tracks the addresses of nodes.
Real-Time Transport Protocol. Supports transport of real-time data like interactive voice and video over packet-switched networks.
Real-Time Transport Control Protocol.
Digital Signal Processor
See Pulse Code Modulation.
Notation that describes line card redundancy, where N is the number of installed line cards of a single card type and 1 is an additional line card of that type designated as a standby card. For example, if you have three T-ONE cards and one additional standby T-ONE card installed, the system provides redundancy by activating the standby card if any of the three active T-ONE cards fail.
The Registration, Admission, and Status messages communicated between two H.323 entities for example between an Endpoint and a Gatekeeper.
Voice Data Access Concentrator Card. Performs two-way conversion between circuit-switched data and packet-switched Ethernet data required by packetized voice applications such as VoIP.