Commend C-GEC881S.C Manuale utente

GEC 880

Service Manual

Version: 1.2/0111

PRODUCT MANUAL

ENGLISH

GEC 880 Service Manual

21.2/0111

Manufacturer’s Reference:

A Counter Intercom System consisting of GEC881/GEC882 and PA24W15V fulfils the requirements of the

EU-standard 89/336/EEC.

Application:

With regard to the CE mark, the Counter Intercom is suitable for the following types of application: residential

buildings, office and commercial premises, small businesses and industrial premises with public low-voltage mains

supply.

Therefore this equipment is CE-labelled.

Subject to change

The material in this document is for information only and subject to change without notice. While reasonable efforts

have been made in the preparation of this document to assure its accuracy, we assume no liability resulting from er-

rors or omissions in this document, or from the use of the information contained herein. We reserve the right to make

changes or revisions in the product design or the product manual without reservation and without obligation to notify

any person of such revisions and changes.

Cleaning the station

Use a damp cloth to clean the station when required. Do not use water, liquid detergent or paper towels to clean the

station!

PRECAUTIONS

To prevent defects, do not expose the station to rain or moisture. Do not open the station. Refer servicing to qualified

personnel only.

■

Do not connect ethernet devises! This can damage the operator staion and / or the enternet devices

■

Do not use the station near water, e.g. near a bathtub, pool, kitchen sink, laundry tub, swimming pool or in a wet

basement.

■

Do not place the station on an unstable cart, stand, or table. If the station falls, it can injure a person and cause

serious damage to the appliance.

■

Do not install the station in a location near heat sources such as radiators or air ducts, or in a place subject to direct

sunlight, or excessive dust or mechanical vibration or shock.

■

Mounting and installation of the Counter Intercom GEC 880 and of the equipment may be carried out by authorised

service personnel only when the power supply is unplugged.

■

The counter intercom GEC 880 may be opened only in electrostatic protected areas.

On the bottom of the station a label displays the station type and serial number for reference.

Please keep this description in safe custody!

Please do not give users / operators access to this manual. This will prevent “de-parametrisation“ by the

customer and may you some on-site service lookups.

GEC 880

Version: 1.2/0111

Number of Pages: 13

GEC 880 Service Manual

1.2/0111 3

Content

General 4

The Stations 4

Extent of supply 4

Operation 4

Technical Data 5

Installation 7

Components and cabling 7

Power supply and wall socket 7

Mounting of the client side 8

Microphone client side 8

Positioning of the client side micophon 9

Loudspeaker client side 10

Positioning of the client side loudspeaker 10

SERVICE MODE 11

Parameter Reset 12

Examples 12

Technical Support 13

General GEC 880 Service Manual

41.2/0111

General

Digital desktop counter intercom systems fulfill the widest variety of requirements – from security

solutions in banks to ski-lift stations and ticket counters to isolation wards in hospitals.

The modular construction of the system allows any number of desktop counter intercom systems to

be combined into one system. The basic unit is a digital intercom station, which is available in two

different versions (with and without gooseneck). Therefore it is very simple to select the optimum

station for every counter requirement.

The Stations

GEC 881

Digital desktop counter call station with plastic reinforced silicon keypad and

built-in microphone with omnidirectional characteristic for unrestricted

speech. Keypad with 15 keys, printed with easily understood pictograms.

Extent of supply:

Wall mounting box for surface mounting

3 m connection cable.

Further accessories must be ordered separately.

GEC 882

Digital desktop counter call station with plastic reinforced silicon keypad,

antitilt device and cardioid type goose neck microphone. Keypad with 15

keys, printed with easily understood non-verbal pictograms.

Extent of supply:

Wall mounting box for surface mounting

3 m connection cable.

Further accessories must be ordered separately.

Extent of supply

Counter Intercom system including:

Inside station GEC 881 or GEC 882

Modular outlet for surface or flush mounting

3 m (9.8 feet) connection cable ASKKAT6-3 from operator station to wall outlet

Manual and quick installation guide

Operation

See GEC 880 User Manual.

GEC 880 Service Manual Technical Data

1.2/0111 5

Technical Data

Technical Data GEC 881 / GEC 882

IP-rating: IP 30

MTBF: 1.37 mio. h

Loudspeakers: Internal: 8 Ohm

External: connection possibility for

loudspeaker(s) 4 – 16 Ohm

Internal microphone GEC 881: omnidirectional electret microphone

GEC 882: gooseneck cardioid electret microphone

both with adjustable speaking zone

Amplifier: outside: built-in amplifier with 10/15 W

inside: built-in amplifier with 0.6/0.8 W

Power supply: 12 – 18 VDC, 1.2 A

Cabling: 10-wires (8 signal + 2 power supply)

Connection: RJ 10 socket (for headset/handset)

RJ45 socket (for outside microphone, outside loudspeaker,

proximity switch or bell button, AUX output)

Frequency range: 500 Hz – 15 kHz

Operating temperature range: 0° C to +50° C

(32° F to 122° F)

Storage temperature range: –20° C to +60° C

(–4° F to 140° F)

Relative humidity: 20% to 80%

Measurements: GEC 881: 66 x 55 x 230 mm (2.6 x 2.2 x 9.1 in)

GEC 882: 179 x 280 x 230 mm (7.1 x 11 x 9.1 in)

length of gooseneck: 422 mm (16.6 in)

Weight incl. package: GEC 881: 280 g (0.6 lbs)

GEC 882: 440 g (1 lb)

Technical Data Q400

Directivity: cardioid to the front

Directivity: 15 mV / Pa

Frequency range: 100 Hz – 8 kHz

Temperature range: –25°C to +70°C (–13° F to 158° F)

Cable length: 2.8 m (9.2 ft) shielded

Measurements: W 24 x H 42 x D 13 mm (1.69 x 0.83 x 0.51 in)

Colour: Black

Technical Data MIC 480

Type: Back electret condenser microphone

Directivity: omnidirectional

Sensitivity: 5.6 mV / Pa

Frequency range: 20 Hz – 16 kHz

IP rating: IP 53 (only if installed correctly)

Temperature range: –20°C to +60°C (–4° F to 140° F)

Colour: black

Measurements: ø 14 x D 20 mm (0.55 x 0.79 in)

Types: MIC480: 4 m (13.1 ft) shielded

MIC480S-10: 10 m (32.8 ft) shielded

Technical Data GEC 880 Service Manual

61.2/0111

Technical Data AL10-16

Load rating / music power: 12/15 W

Impedance: 16 Ohm

Sound Pressure Level: 94 dB/W/m

Max. Sound Pressure Level: 110 dB (1 m)

Transmission range (–3 dB): 220 - 16 000 Hz

Transmission angle (–6 dB): Horizontal (3 m): 1/4/8 kHz: 220°/60°/60°

Vertical (3 m): 1/4/8 kHz: 140°/100°/30°

Material: housing: plastic, grille: metal

Net weight: 1,600 g

Connection: 2-core cable (50 cm)

Accessories (included): U-type mounting bracket

Dimensions (including brackets): W 100 mm, H 300 mm, D 98 mm

(3.9“ x 11.8“ x 3.9“)

Colours: Black (AL10-16S), White (AL10-16W)

Technical Data PA 24W15V

Primary: 90 – 264 VAC (47 - 63 Hz)

Secondary: 14,5 – 15,5 VDC, 1,6 ADC, 24 W

Efficiency: 75 – 85%

Temperature range: –5° C bis +40° C (23°F 104°F)

Measurements: W 54 mm x H 110 mm x D 38 mm

(2.12 x 4.33 x 1.49 in)

Weight: approx. 175 g

Colour: black

Cable length: 1.5 m (4.9 ft)

Technical Data Power Cable

Types: KAB-C13-AU (Australia)

KAB-C13-EU (Europe)

KAB-C13-UK (Great Britain)

KAB-C13-US (USA)

Cable length: 1.5 m (4.9 ft)

Technical Data KABJTAG3

Weight: approx. 73 g

Cable length: 150 cm (60 in)

GEC 880 Service Manual Installation

1.2/0111 7

Installation

Components and cabling

Power supply and wall socket

Power supply unit

24 W high-efficiency switched-mode power supply. The power cable must be ordered seperately

Power supply:

PA24W15V

Power Cable:

KAB-C13-AU (Australia)

KAB-C13-EU (Europe)

KAB-C13-UK (Great Britain)

KAB-C13-US (USA)

Please use only DC power supplies with 12 to 18 V sec. and 1.2 A min. The Counter Intercom station is

not qualified for AC supply or DC supply exceeding 18 V.

Wall socket

The operator station must be connected to the wall socket via the supplied cable (CAT6, straight, not

crossed).

The outside loudspeaker, microphone and bell button are connected to the wall socket. Pin assignment

see ”Components and cabling” above.

Attention: Do not mis-connect the wires of the outside microphone. Polarity must be observed.

However, polarity of the outside loudspeaker is not relevant.

Attention: If you connect a crossed-out RJ45 cable, irreparable damage to the Intercom station may

occur!

GEC 882

AL10-16

Q400

PA24W15V

KAB-C13-**

Option:

Headset

ASKKAT6-3, 3 m*

Cable length 2.8 m (9.2 ft)

Operator side

Client side

glass, wall, etc.

communication hatch

Cable length 1.5 m (4.9 ft)

wall

socket *

* ...Included in extent of supply

**...Depending on the country-speciﬁc

version (AU/EU/UK/US)

LS+

LS–

IN+

AUX+

AUX–

IN–

MIC+

MIC–

zur GEC 881/

GEC 882

Measurements wall mount box:

88 x 88 x 30 (3.5 x 3.5 x 1.2)

50 (1.97)

Mounting of the client side GEC 880 Service Manual

81.2/0111

Mounting of the client side

The loudspeaker must be mounted at least 1 m / 40 inches away from the microphone. If possible, the

loudspeaker should not face the microphone directly because this leads to an echo of the operator

voice at the inside station.

1. Mounting version A: Loudspeaker at the top (best for acoustic separation of multiple queues)

2. Mounting version B: Loudspeaker at the side in level of ears (best for single queue situations)

If possible, the microphone should be mounted at the bottom of the counter, in direction to the client.

If this is not possible, the microphone has to be mounted aside in direction to the client. The closer the

microphone is mounted to the clients mouth, the lower the volume required at the operator station.

3. Mounting version A: Microphone mounted in the middle of the counter

4. Mounting version B: Build-in microphone at the side

Microphone client side

The outside microphone should not be mounted nearby the outside loudspeaker and, most notably, it

should not face the sound beam of the speaker(s). The call station will try to suppress audible feedback

at any time and therefore will reduce the outside volume level at situations with high acoustic coupling.

If the outside microphone is installed very near to the outside speaker, maximum outside volume level

will not be possible.

Mouse Microphone Q400

This microphone has a special directional characteristic as shown in the picture. It should be mounted

in such a way, that the speech of the client enters the microphone in direction of the arrows. The

microphone can also be used for outdoor mounting, but it must be protected against rain and moisture.

Technical data see page 5.

Build-in Microphone MIC 480

The build-in microphone is designed to fit panels up to 10 mm (0.4 inch) thick. Technical data

see page 5

Note: To fullfill the IP53-classification the opening of the microphone must face to the bottom.

Bore-hole

Mounting

Opening

to the bottom

max. 10 mm (0.39 in)

1.5 mm

(0.06 in)

8 mm

(0.32 in)

GEC 880 Service Manual Mounting of the client side

1.2/0111 9

Positioning of the client side micophon

When mounting the client side microphone a minimum distance (l) between client side and service side

opening must be insured.

If the distance is too small, the audio quality decreases. The two most common cases are shown in the

following figures.

Situation 1

Situation 2

Settings

For a the optimal audio quality don‘t change the parameters SZE, AEC, NLP. Normaly with the default

value SZE = 5, AEC = 3 and NLP = 3 you get the best quality (paramters see page 11).

service side

service si

client side

MIC Q 400

l= min. 25cm

MIC Q 480

l= min. 35cm

MIC

service side

ervice si

client side

MIC Q 400

l= min. 25cm

MIC

Mounting of the client side GEC 880 Service Manual

10 1.2/0111

Loudspeaker client side

The outside loudspeaker must have 4 to 16 ohms impedance and shall not be mounted to far from the

wall socket, because otherwise a larger cable diameter is required. For greater distances a 16 Ohm

loudspeaker is preferable. This loudspeaker allows a line length up to 4 times as large as compared to

a 4 ohm loudspeaker.

Connection of multiple loudspeakers in series or parallel is allowed as long as the impedance of the

entire circuit does not drop below 4 ohms.

AL10-16

For ”Technical Data” see page 5.

When using line arrays (like e.g. AL10-16) the directivity of the array should be used to address only

the parts of the outside area, in which the customer is situated. Depending on the building construction

the line array is positioned in horizontally or vertically (see ”Mounting of the client side” on page 8).

Positioning of the client side loudspeaker

Settings

If operating more than one call stations GEC 882 side by side, feature “AHC” (via parameter “NLP” in

service mode) has to be switched on (value 3 = already active in standard), to compensate for the

acoustic coupling between the call stations (see page 11).

Example for a single counter: Example for multiple counters:

In this setup the speech of the

operator is audible in the entire

Example how to utilize the directivity of a speaker line array

(e.g. AL10-16) for separately addressing individual queues via

horizontal mounting above the counter.

area in front of the counter.

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