ATLB-12 - AlphaCom Telephone Line Board
From Zenitel Wiki
Contents
Features
- High capacity line card for analogue telephones supporting 12 subscribers lines
- Supports all ACM telephone features
- Supports hotline calling and DTMF dialing
- Each board supports 6 programmable remote outputs
- Includes voice switching circuits for two loudspeaking conversations
- Board hot plug-in
Description
The ATLB-12 card is a high capacity analogue telephone line card supporting 12 subscriber lines. The subscribers have access to all STENTOFON AlphaCom telephone features.
A hot-line function is available for connection of telephones without dial buttons. When the handset is lifted, a preprogrammed number is dialed. This can be a call to another subscriber or activation of a function in the exchange. The board provides 6 configurable remote control outputs for interfacing of external equipment such as strobe lights, PA control signals and more.
The card can be inserted in position 1-6 in the AlphaCom XE7 exchange, and position 1-23 in the AlphaCom XE20 and XE26 exchanges. In AlphaCom XE20 and XE26 exchanges, the board can be plugged in or out while the exchange is running using the board hot-swap function.
Connection material
- AlphaCom XE20/XE26: Filter and connection card ASLT and ATLB
- AlphaCom XE7: Connection Kit ASLT/AGA/AE1/ATLB
Physical ports
The ATLB-12 provides 12 telephone lines. The 6 first telephone lines get the physical number according to the physical slot the ATLB-12 is but into. The 6 last telephone lines have an offset of 276 to 6 first physical numbers.
Example:
- ATLB-12 installed in slot 1 is using physical numbers 1-6 and 277-282.
- ATLB-12 installed in slot 2 is using physical numbers 7-12 and 283-288.
- ATLB-12 installed in slot 3 is using physical numbers 13-18 and 289-294.
- Etc.
Switches
The 3 DIP switches located on the ATLB-12 card are not relevant for the board’s performance since they are not implemented for use yet. They are placed on the board for future use only.
Software Requirement
Minimum software requirement in AlphaCom: AMC 11.2.3.9
Line Monitoring
The ATLB-12 must be equipped with special software (05.51 or later) in order to support line monitoring. Note that when using ATLB-12 with line monitoring, there can be maximum 15 x ATLB-12 boards in one AlphaCom XE20 or XE26 module. In addition there can be 2 x ASLT boards and 1 x AGA board. For the line monitoring to work, the line must be terminated with an 8k2 resistor.
As the ATLB-12 software cannot be updated in the field, this must be done at the factory before the board is shipped. Please contact alphasupport@zenitel.com if line monitoring is required.
Specifications
| Order Number: | 1009104000 |
|---|---|
| Interface type | FXS |
| Signalling | DTMF |
| FXS loop resistance | 600 Ohm |
| On hook voltage | -42V |
| Ring voltage | 50Vrms |
| Ring frequency | 25 Hz |
| Frequency range | 300-3400 Hz |
| Crosstalk at 1 kHz: | <- 75 dB |
| S/N ratio (conversation) | 45 dB |
| Capacity | 12 subscribers lines Up to 3 telephones per line |
| Duplex scanner | 2 |
| Remote control outputs: | 6 (5V 2.2 kOhm) |
| Cable type | Screened, 1 twisted pair, 0.5 mm2 |
| Distortion: | <2% |
| Line voltage | -48V |
| Dimensions (WxHxD) | 10mm x 230mm x 263mm <br\> 0.39"x 8.97"x 10.26" <br\> Double Extended Europe Format |