Digital Telephone Voice Recording Interfaces
Analogue Audio/Telephone Recording Interfaces
Covert Audio/Video Security System
Audio System / Dealer Board Interface Analogue Telephone Signalling Converters

Digital to Analogue Converters

Previous Page

ACL have developed the Digital to Analogue converter for digital switches where the switch manufacturer does not have an available recording Interface.

History
The conventional way to record a Digital telephone switch was to tap into the Analogue signal from the user’s terminal telephone handset and bring the Analogue signal back via the structured cable.

This has many disadvantages, some of which are:

·  Large analogue signal loss.
·  Hum and Noise pick up.
·  User able to disconnect audio.

·  Often hands free calls not recorded.
·  All wiring not contained in secure equipment room.
·  Usage of valuable structured cable resources.

Advantages
The advantages of using ACL Digital DAC cards over other digital interfaces connected to voice recorders:

·  Long tap length, up to maximum cable length specified by PBX manufacturer

    (aprox 1km).

·  In the event of a failure, DAC cards can be replaced without powering down

     the recorder.

·  The DAC cards are hot-swappable without power down.

·  Speech LED to show call in progress.

·  Sync LED to show data connection between PBX and the extension.

·  Balanced audio output to recorder.

·  Audio output can be driven over long cable length without degradation (up to 500m).

·  Very reliable.
 

Specifications
Inputs to card taken in parallel with existing wiring (except Mitel and Avaya Index where the connection is in series with extension wiring) - no disturbance to existing switch installation or interference with digital switch or telephones.

Negligible loading on line, and no signals transmitted onto line.

Full transformer isolation (>1kV DC) from line.

Individual indication of call in progress via VOX Leds.

Digital mixing of local and distant end speech. Digital sound quality.

Supplied as standard with 2 line channels per card, B1 signal on each ( B2 option 4 channels available).

Plugs into ACL universal digital backplane housed in 3 U high shelves, 15/20 cards (30/40 channels). Or DAC in a box, 2, 4, 6 and 8 channel format with plug top P.S.U.

Compatible PBX List
Currently we can supply converters for:

SWITCH PHONE TYPE CARD TYPE

Alcatel Omni PCX / 4200 / 4400

4xxx

IM12

Ascom 4-wire

All 4 wire Digital Handsets

SB44

Aspect ACD

30xx / 31xx

AS12

Avaya IP Office

DT/TT series / 20xx

EC44 a

Avaya IP Office

4xxx / 6xxx / 8xxx Call Master 3 / 4 / 5

PPM24 SMN

Avaya / Lucent Alchemy

DT/TT series / 20xx

EC44 a

Avaya / Lucent / SDX Index

DT/TT series / 20xx

EC44 a

Avaya / Lucent Definity 4-wire

All 4 wire Digital Handsets

SB44 a

Avaya / Lucent Definity / Prolog 2-wire

4xxx / 6xxx / 8xxx/ Call Master 3 / 4 / 5

PPM24 SMN

Avaya / Bosch DL1000

All 4 wire Digital Handsets

SB24/44

BT / Nortel Meridian (bit 2)

M2xxx / 3xxx / etc M2250 console

PPM24 BT2

BT / Nortel Meridian (bit 4)

M2xxx / 3xxx / etc M2250 console

PPM24 BT4

BT / Nortel Norstar

M7xxx / T7xxx

PPM24 NOR

Ericsson MD110

All Phones Connected to ELU25 / 28 / 29 Cards / Consono / DBC2xx

PPM24 NAT

Ericsson MD110

Feature Phones connected to ELU5 (old digital phones) / DBC561

IX12 / E18

Ericsson MD110

Consoles connected to ELU5 (old consoles) / basic digital phones

IX12 / E16

Ericsson ACD 1000

All Phones Connected to ELU25 / 28 / 29 Cards / Consono / DBC2xx

PPM24 NAT

Ericsson ACD 6000

All 4 wire Digital Handsets

SB44

GPT / Realitis ISDX 4-wire

D60 / D70 / D80

SB24/44

GPT / Realitis ISDX ACD terminals

MK2 / 3 / 4 / 5 / PC Based / Screen Based Consoles

IX12

GPT ISDX Mercury / Tel. Rentals ISDT

ISDT30 / ISDT300

PPM24 SMN

Inter-tel Axxess

All 2 wire Digital Handsets

PPM24 AKM

LG / Goldstar

All 2 wire Digital Handsets

PPM24 NAT

Matra Nortel MC650x

MC4xx / MC5xx / M760

AS12

Mitel SX200 / SX2000 / Lite

Superset 4xxx / 70 / 700 / 7000

EC44 Mu

Philips IS3000 2-wire (Philips “U”)

D3xx (2-wire)

PPM24 SMN

Philips IS3000 4-wire

D3xx / D6xx (4-wire)

SB24/44

Rockwell ACD terminals

4-wire / 2 channels

All 4 wire Digital Handsets

SB44

Samsung DCX

All 2 wire Digital Handsets

PPM24 NAT

Siemens Hicom/

Hipath 2-wire

All 2 wire Digital Telephone

Connected to SLMO/SLMU

Cards / Optiset E / Optipoint

PPM24 SMN

Siemens Realitis 4-wire

D60 / D70 / D80

SB24/44

Telrad 2-wire

All 2 wire Digital Handsets

PPM24 TR

Telrad 4-wire

All 4 wire Digital Handsets

SB24/44

Tenovis

All 4 wire Digital Handsets

SB24/44

Toshiba Strata

DKT25xx / DKT30xx

PP24 TSH

With ACD systems we have exchange end watchdog to prevent open mic recording during idle.

We also have developed an analogue to digital converter (SBUS 2 chnl) to encode Analogue voice signals for totally digital recorders (type AD42).

 
cheap nba jerseys australia cheap ghds uk ghd factory outlet cheap ghd sale nz

 

Rolex (ROELX) in 2014 in Basel, Switzerland, the rolex replica international exhibition, the introduction of a new series of Rolex cut series, became the hottest watch. Under normal circumstances, in breitling replica order to show the dignity of the identity and modesty of the ceremony, the men will be put on formal occasions to attend a formal dress, but also with a formal watch, appears to be more polite. Rolex watches have long always gives people a kind of replica watches heavy feeling of strength, and most are steel watch, so when wearing a dress of many fans will not choose Rolex, the reason is not elegant decent, wild. But the rolex replica watches new Rolex Cellini series make up for this defect, presented in front of us is a pure and yet elegant dress watch.