Bell System 719S Manuel utilisateur

PD-008 Iss 6 Installation & Operation Manual 12/08/2008

Bell System (Telephones) Ltd

Model 719S

2 Door Switching Unit

PD-008 Iss 6

719S 2 Door Switching Unit

PD-008 Iss 6 Installation & Operation Manual Page 2 of 20

Table of Contents

GENERAL DESCRIPTION ........................................................................................3

OPERATION ..............................................................................................................3

TELEPHONES............................................................................................................3

POWER SUPPLY........................................................................................................3

ELECTRIC LOCK RELEASE / MAGLOCK ........................................................................4

EGRESS FACILITY......................................................................................................4

TRADESMAN FACILITY................................................................................................4

DOOR STATUS INDICATION.........................................................................................4

SYSTEMS WITH 3OR MORE DOORS ...........................................................................4

SETTINGS.................................................................................................................5

Speech Active Time............................................................................................5

Lock Release Time .............................................................................................5

Mode Setting.......................................................................................................5

IMPORTANT SAFETY INFORMATION.....................................................................6

INSTALLATION.........................................................................................................7

CABLE REQUIREMENTS..............................................................................................8

TROUBLESHOOTING...................................................................................................9

Test Button..........................................................................................................9

LED Status Indicators .........................................................................................9

Problem and Cause ............................................................................................9

Technical Specification .....................................................................................12

DIAGRAM 1: WIRING FOR 2 DOOR AC SYSTEMS ........................................................13

DIAGRAM 2: 719S AC INTERCONNECTIONS FOR SYSTEMS OF3 – 16 DOORS..............14

DIAGRAM 3: WIRING DIAGRAM FOR 2 DOOR DC SYSTEMS..........................................15

DIAGRAM 4: 719S DC INTERCONNECTIONS FOR SYSTEMS OF3 – 16 DOORS .............16

DIAGRAM 5: DISTRIBUTION OF COMMON CABLES OF BS-LX PHONES ..........................17

DIAGRAM 6: CONNECTION OFADDITIONAL PSU FOR 21-60 BS-LX PHONES ...............18

DIAGRAM 7: DOOR CONTACT / SWITCH WIRING.........................................................19

MANUFACTURER DETAILS...................................................................................20

STANDARDS...........................................................................................................20

719S 2 Door Switching Unit

PD-008 Iss 6 Installation & Operation Manual Page 3 of 20

General Description

The Model 719S Switching Unit provides a means of operating a door entry telephone

system from two entrances. Several 719S units may be combined to extend operation

up to a maximum of sixteen entrances.

Operation

When a telephone is called from a given entrance, the switching unit connects the

telephone to the calling entrance only. The unit remains active for a preset period (30 -

120 secs), during which time the resident may converse with the caller by lifting the

telephone handset and, if required, allow the caller to gain access. By pressing the

telephone 'lock button' the lock release (of the active entrance only) will operate for a

preset period (3 - 20 secs) and end the call.

When a given entrance panel is in use, all other entrances are 'locked out' fortheactive

period (30 - 120 secs), during which time it is not possible to call any of the telephones

from these entrances. This engage condition maybe indicated to other callers by an

optional 'engaged lamp’ installed at each door.

Telephones

The 719S switching unit is compatible with the telephones listed below: -

Telephonemodel Type Diagrams

801 12V AC/DC

1 and 2 (AC) or

3 and 4 (DC)

801S 12V AC/DC with Buzzer Mute

801P 12V AC/DC with Privacy of Speech

801PS 12V AC/DC with both 801S and 801P

features.

801-DESK 12V AC/DC desk mounting

BS-LX 12V DC with Mute + LED features 3 - 7

The 719S is compatible with 500 series phones, please refer to manual PD-008 Iss 4.

* Only 801 Series phones manufactured after April 2000 (Electronic ring) are DC

compatible.

Power Supply

The 719S is powered from a 12V AC 2A PSU (225) for AC telephones or 12V DC 4A

PSU (PS4) for DC telephones. A separate power supply is required for each 719S unit

in multi-door systems (see Diagrams 2 or 4).

It is also possible to operate a fail-safe lock release on an AC system with the addition

of a 12V DC 1.5A PSU (340C), see diagram 1.

719S 2 Door Switching Unit

PD-008 Iss 6 Installation & Operation Manual Page 4 of 20

A maximum of 20 BS-LX telephones can be powered directly from a 719S unit. For up

to 60 telephones an additional PS4 PSU must be used. Refer to diagram 6. For larger

systems contact your distributor or the manufacturer for further guidance.

Electric Lock Release / Maglock

Either fail-secure (AC/DC) or fail-safe (DC only) type electric lock releases can be

operated directly from the 719S Switching unit. Use the 'FAIL SECR' connections for

fail-secure releases. Use the 'FAIL SAFE' connections for fail-safe releases and

magnetic locks. The Lock outputs are rated at a maximum current of 0.5A. A suitable

transient suppressor must be fitted across or in any Maglock used.

Egress Facility

An 'egress' button may be installed, on the inside of each door, to allow residents to

freely exit. Momentarily pressing this button will operate the lock release for a fixed

period (3 - 20 secs). The egress button is connected to the 719S Switching unit using

the terminals marked 'EXIT' and should be ‘push to make’, refer to diagrams 1 or 3.

Tradesman Facility

The entrance panels may be ordered with an optional 'Tradesman' button to allow free

access during certain hours (used in conjunction with a time-clock). Momentarily

pressing this button will operate the lock release for a fixed period (3 - 20 secs). As

illustrated in diagrams 1 or 3, the tradesman's buttonshould be connectedinserieswith

the isolated contacts of a Time clock and then to the 'EXIT' terminals of the switching

unit.

Door Status Indication

The BS-LX model of telephone has a green LED indicator to show the status of the

entrance door(s); the indicator illuminates when one or moreof the doorsareopen.The

door must be fitted with a suitable switch (rated 1.0A @ 12V for 60 phones).

If the door contacts are closed when the door is closed the contacts should be wired in

series and then connected into the ‘DOOR SW’ terminalsonthe719SforDOOR 1only.

If the door contacts are open when the door is closed the contacts should be wired

separately in to the ‘DOOR SW’ terminals on the 719S for the associated door.

Refer to diagram 7.

Systems With 3 or More Doors

One 719S unit is required for every two doors up to a maximum of 16 doors (e.g. 5

doors requires 3 x 719S units). Refer to diagram 2 (AC telephonemodels)ordiagram 4

(DC telephone models).

A separate power supply is required for each 719S unit. The 719S units should be

installed no more than 2 metres apart (unless using 2 Level Gate and Block wiring,

719S 2 Door Switching Unit

PD-008 Iss 6 Installation & Operation Manual Page 5 of 20

see to document PD-082).

Settings

Speech Active Time

The duration for which speech remains active (from the moment a telephone is called)

can be set between 30 and 120 seconds using the PCB DIP switch marked >SW2':

Time (s) ‘SW2’ DIP Switch settings

30 [aserghjk]

(Default) [as3rghjk]

90 [ase4ghjk]

120 [as34ghjk]

Lock Release Time

The Lock Release time can be set between 3 and 20 seconds using the PCB DIP

switch >SW2':

Time (s) ‘SW2’ DIP Switch settings

3[qwdfghjk]

(Default) [1wdfghjk]

10 [q2dfghjk]

20 [12dfghjk]

Mode Setting

For the system to operate correctly the operating mode MUST be set as below:

Operating Mode ‘SW2’ DIP Switch settings

Standard 2 Door

Switching Unit

(Default)

[asdfghji]

2 Level Gate and Block

Switching Unit

(Refer to supplement PD-082)

[asdfghj8]

719S 2 Door Switching Unit

PD-008 Iss 6 Installation & Operation Manual Page 6 of 20

Important Safety Information

Connections to the 240V AC mains supply must be carried out by a qualified electrician

or similar competent person, and made in accordance with acceptedsafetypractices.A

two-pole switch (as provided by a Consumer Unit or Switch-Fuse) must be included to

isolate both Live and Neutral during Installation or Maintenance. The circuit must be

protected by a fuse or other current-limiting device, rated according to the capacity of

the cable used, up to a maximum of 10A. Use onlymains cable to BS6004, BS6500, or

equivalent, within the following specified limits:

Min Max

Conductor Diameter 1.0 mm (0.8 mm2) 2.25 mm (4 mm2)

Cable Diameter 4.0 mm 8.0 mm

The Model 225, 340C or PS4 Power Supply (where used) must be wall-mounted onto

plasterboard, wood or a similar non-conductive material, in a protected indoor

environment such as an electrical cupboard. A fuse protects theinternaltransformer on

the 225; always replace with the correct type and rating.

Power Supply Model Fuse

225 T125mA 250V

The fuse must be of the 20mm glass, 250V, and time delay type approved to BS EN

60127 or equivalent).

The 340C and PS4 do not have replaceable fuses.

When fitting the power supply cable (both mains and low voltage) ensure the cable

entry cut-outs in the enclosure lid are no larger than necessary for the cable diameter

used and under no circumstances must they be taken beyond the outer cut-out zones.

All equipment except the entrance panel must be placed in a protected indoor

environment.

719S 2 Door Switching Unit

PD-008 Iss 6 Installation & Operation Manual Page 7 of 20

Installation

Initially connect all the equipment to one telephone ONLY. With the power applied, test

the system is fully operational. Connect one telephone at a time and test before

proceeding.

719S 2 Door Switching Unit

PD-008 Iss 6 Installation & Operation Manual Page 8 of 20

Cable Requirements

Use standard 0.5mm solid core twisted-pair CAT5/CAT5e unshielded or CW1308

telephone cable for all connections unless otherwise specified. Do not use stranded

alarm cable. For optimum speech clarity a twisted-pair must be used for the 'R' and 'O'

connections to telephone and speechunit.Avoid runninganycablesalongsidemainsor

other transmission wiring.

The Total number of cores depends on the requirement for each telephone model as

shown in the table below. In all cases there is an individual call line for each phone,

while the remainder of the cores are common to all phones in the system. All telephone

models, except the BS-LX, may be wired either with an individual cable or by looping

from phone to phone.

Care must be taken with the BS-LX model to avoid voltage drop problems (due to LED

currents from mute and door status features). Refer to the tables on diagram 5 and

below before planning the cable layout for these models. If in doubt please contact

your distributor or the manufacturer for further guidance.

Connection No. of

cores Max

Length Conductor

Size

801,801S, 801P or 801PS

Phone 5 100m 0.5mm dia.

BS-LX Phone 7 See diagram 5

BS-LX (no door contact, no ’L’) 6

Power Supply 2 2m 1.0mm

Speech Unit 5 50m 0.5mm dia.

Lock Release (up to 0.5A) 2 25m

50m 0.5mm dia.

1.0mm2

EXIT/Trades Button

(inc. Time Clock 2 100m 0.5mm dia.

Door Monitor Contact 2 See diagram 5 and 7

719S 2 Door Switching Unit

PD-008 Iss 6 Installation & Operation Manual Page 9 of 20

Troubleshooting

Test Button

There are two Test buttons on the PCB marked 'TEST 1' and 'TEST 2'. Pressing the

appropriate button will force entrance 1 or 2 into an active state (green LED on, 12V at

the B terminal) for a fixed period (speech active time). Telephone models with ‘privacy

of speech’ (801P, 801PS and BS-LX) must also be buzzed to enable speech. This

feature is provided to assist in fault diagnosis during installation and commissioning.

LED Status Indicators

To assist in testing and fault diagnosis there are 4 LED Indicators on the 719S PCB

which can be interpreted as follows: -

LED 1 (GREEN) - Speech Active / Call in progress on Door 1

LED 2 (RED) - Lock Release Active Door 1

LED 3 (GREEN) - Speech Active / Call in progress on Door 2

LED 4 (RED) - Lock Release Active Door 2

Problem and Cause

The Voltages below are AC or DC depending on the power supply used.

PROBLEM COMMON CAUSE AND ACTION

Low speech volume. 'Vol A' or 'Vol B' adjustment required on the

Speech Unit.

Speech Unit is not tight against the panel

grill.

Panel grill is blocked.

Speech Unit supply voltage low. Check

11.5V-15V across 'C' and 'H' on unit.

More than one telephone is off the hook (801

or 801S only).

Constant tone/feedback

when in use. 'Vol A' or 'Vol B' adjustment required on the

Speech Unit.

Missing 'O' connection on the telephone.

Speech Unit is not tight against the panel

grill.

Entrance panel and telephone to close

together.

Reflecting walls surround the entrance panel.

Panel grill is blocked.

Alarm cable has been used.

719S 2 Door Switching Unit

PD-008 Iss 6 Installation & Operation Manual Page 10 of 20

Speech not audible when

phone is buzzed. No/low supply to Speech Unit. Check 11.5V-

15V across 'C' and 'H' on the unit.

Faulty 'R', 'O', or 'T' line between Switching

Unit and phone or Switching Unit and panel.

Telephone will not buzz

(no green LED illuminated

on the 719S)

Faulty 'O' or 'I' line between Switching Unit

and phone.

‘B’ terminal on the 719S not wired to the call

button commons in the entrance panel (only

if no ringing on several phones). Check for

12V on the ‘B’ wire when the TEST button

has been pressed (green LED on).

‘B’ terminal connected to 12V instead of only

to call buttons on the other entrance (green

LED stuck on for other Door). Check by

taking out the B terminal for the other Door

and waiting for the green LED to go off after

the speech time.

AC telephone systems only: Faulty >H=or >O=

line between switching unit and panel. As a

check, short >H=to =O=at the switching unit

and try again.

Faulty >V=connection to phone. Check 10-

15V between >O=and >V=at the phone (BS-LX

phone ONLY).

Faulty panel button.

No/low supply to Switching Unit - Check

11.5V-15V on Switching Unit supply input.

Power supply has been wired to wrong

Switching Unit input. Check an AC supply

has been wired to a 12V AC input or a DC

supply wired to a 12V DC input, where

installed.

Lock button does not

operate release. AC telephone systems only: Fault on >H=or

>O=between switching unit and panel. As a

check, short >H=to >O=at the switching unit

and try the lock button again, when active.

Fault on 'Z' or 'O' line. Check shorting 'Z' to

'O' at the Switching Unit, when active (green

LED on), operates the release.

Lock release supply low. Check 11.5V-15V

across the release with the lock button

pressed and the phone active.

Using a fail-safe output but no DC power

supply present.

Tradesman/Exit button

inoperative. Time Clock is not running or incorrectly set

(Tradesman button only).

Check connections to 'EXIT' input.

Lock release operates all If the lock is a 'fail safe' type it has been

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