Door Phone Intercom That Connects To Any PABX

You can connect our products to either a PABX

(1) Line Trunk
or an
(2) Analogue Extension.

(1) Line Trunk Connection

The door station controllers described in the Door Station for Home Phones category can also be used with a PABX business telephone system.

In this application our door station controller connects to a telephone line immediately ahead of the PABX telephone system. The last line is normally selected, as it is usually the least used (see option 2 installation on page 9).

If your telephone system has the capacity to have additional telephone lines connected to it, then our door station controller can connect to one of these unused line inputs (called line trunk inputs). It is not necessary to have an actual telephone line connected on this line input (see option 1 installation on page 9).

The advantage of this alternative connection method is that the door phone will have its own unique line number, easily identified on your telephone handsets or 'door phone call' can usually be displayed on handsets with displays.

You can then connect ONE or TWO of our range of surface mount or flush mount DOOR PHONES direct to the DOOR STATION controller. The door phones can be up to 300 metres from the door station controller (the total distance of 1 or 2 door phones).

Communication is loud and clear, just like a phone call and there are NO call charges, unless the call is routed to an external number.

Model DS2 incorporates an internal relay which can be used to open or release a door or gate lock. Lock release time is fully programmable.

Models DS3 and DS6 provide two internal relays which can be used to open locks in two separate areas (eg; one at your front gate and one at your front door).

The second relay in both these models can alternatively be used to SWITCH ON a light, a video camera/recorder or any other electrical device as soon as the call button is pressed on the door phone and then SWITCH THEM OFF after the call is complete.

 

Line Trunk Installation Options

Connection to an unused Line Trunk Input

 

Connection to the Last Line of a phone system

 

Important Note – some phones systems use Digital ISDN lines. Our door station controller is not suitable for use with these lines. If you are using ISDN lines you will need to use a DS4, DS5 or DS6 controller, connected to an analogue extension as outlined below.

 

(2) Analogue Extension

Our DS4, DS5 and DS6 Model DOOR STATION controllers are designed to connect to an analogue extension of your PABX or other multi-line telephone system.

You can then connect ONE or TWO of our range of surface mount or flush mount DOOR PHONES direct to the controller. The door phones can be up to 300 metres from the door station controller (the total distance of 1 or 2 door phones).

When the call button of either door phone is activated, our DS4 or DS5 unit will generate an off hook condition to your PABX, which can then direct your door phone call as required. (The PABX should be set to HOTDIAL this extension).

Model DS6 can dial through to a pre-programmed internal or external number, if your PABX cannot.

The door station controller will then terminate the call as soon as the called party hangs up.

Communication is loud and clear, just like a phone call and there are NO call charges, unless the call is routed to an external number.

Model DS5 incorporates an internal relay which can be used to open or release a door or gate lock. Lock release time is fully programmable.

Model DS6 provides two internal relays which can be used to open locks in two separate areas (eg; one at your front gate and one at your front door).

The second relay can alternatively be used to SWITCH ON a light, a video camera/ recorder or any other electrical device as soon as the call button is pressed on the door phone and then SWITCH THEM OFF after the call is complete.

Door station controllers can also connect to a PABX Line/Trunk Input. See above.
See door station controller selection chart.

Installation Diagram

Door Phone with Dual Lock Connection

 

Product Selection Table

 

MODEL	Lock Control	PSTN Line Connection	PABX Extension Connection	PABX Trunk Input Connection	External Dial Out Facility
DS1	NONE	YES	NO	YES	NO
DS2	1	YES	NO	YES	NO
DS3	2	YES	NO	YES	NO
DS4	NONE	NO	YES	NO	NO
DS5	1	NO	YES	NO	NO
DS6	2	YES	YES	YES	YES

 

 

Intelligent Touch Tone controlled Relays for Access Control

Our LCU lock control units are intelligent programmable devices with either 1 or 2 internal dry relay contacts, which can be used to control an external device or provide for access or lock control. They are designed to connect to the telephone line in parallel, at any point and you can fit multiple units to a single line. Codes can be any 1 to 4 digit number and the relay can close from 1 to 99 seconds when the code is detected

Model LCU-1 - provides for control of 1 dry relay contact.

 

Model LCU-2 - provides for independent control of 2 dry relay contacts

Alarm Interface Module

Our inexpensive AIM alarm interface module accessory is designed to operate with our model DS6 door station controller and any security alarm system that provides a set of external contacts that close or open whenever the alarm is enabled or disabled. DS6 has the ability to DIAL OUT and connect a visitor that has pressed the call button on any of our door phones to a pre-programmed telephone number (usually a mobile telephone) if the site is unattended. By incorporating the AIM accessory with the alarm panel, DS6 can be instructed to DIAL OUT IMMEDIATELY whenever the alarm is enabled and to RING internally when the alarm is disabled.