2 3
Power supply unit for audio or audio/video systems with 1 input compatible with all outdoor entrance panels featuring
Simplebus 1 technology and 4 outputs for the connection of up to 100 devices such as door-entry phones and door entry
monitors featuring Simplebus 2 technology.
It is equipped with an LED to signal any short-circuits detected on the lines and an AC output facility for powering additional
devices such as switching devices art. 1224A, 1424 and/or actuator relay art. 1256.
Allows intercom functions between users. Equipped with 4 line termination terminals art. 1216.
Dimensions (L x H x D): 140 x 140 x 67 mm (8 DIN modules).
Description
1. -+17.5 VDC (±5%)/100 mA max. Output for power supply Art.1224A, Art.1424 , Art.1256.
2. JP1 Jumper to be set according to the total number of users connected to the mixer/power supply Art.4888C.
3. L1 L1 riser branch output 1
L2 L2 riser branch output 2
L3 L3 riser branch output 3
L4 L4 riser branch output 4.
4. Terminal protection
5. DL1 indicator LED.
Continuous flashing: indicates an extended short-circuit on one of the mixer outputs.
6. JP5 for video closure if several 4888C products are connected in cascade
7. Lin Lin connection to the line originating from the external entrance panel.
8. JP4 device reset.
9. JP2 Jumper to be set according to the total number of users connected to the mixer/power supply Art.4888C.
10. LN ~230 V~. Mains alternating: 230 VAC (+15/-10%) 50/60 Hz/0.7 A.
terminal to be connected to the earthing system.
1 2 3
321
3
2
1476
59
10
12
8
DL1
Warning ............................................................................................ 2
Description....................................................................................... 3
Specifications .................................................................................. 4
Installation........................................................................................ 5
Wire ducts.................................................................................................5
Connections..................................................................................... 6
Programming ................................................................................... 6
Configuring number of users via Jumpers JP1 AND JP2.....................6
Auto-configuration reset via Jumper JP4..............................................6
System performance and layouts .................................................. 7
Operating distances ..................................................................................8
Example of maximum expansion per apartment.........................................9
Apartment block variant with 1 to 4 risers with 2 entrance panels ....11
Digital Entrance Panel Variant with Touch-screen module Art. UT927011
Digital Entrance Panel Variant with number keypad module Art.
UT9279M, UT9279MB, UT9279MW and directory Art. UT9260M ........12
Table of contents
Warning
Intended use
This Comelit product has been designed and manufactured for use in the creation of audio and video communication
systems in residential, commercial, industrial and public buildings.
Installation
All activities connected to the installation of Comelit products must be carried out by qualified technical personnel, with
careful observation of the indications provided in the Manuals / Instruction sheets supplied with those products.
Wires
Disconnect the power supply before carrying out any operations on the wiring.
Use wires with a cross-section suited to the distances involved, observing the instructions provided in the system manual.
We advise against running the system wires through the same duct as power cables (230V or higher).
Safe usage
To ensure Comelit products are used safely:
• carefully observe the indications provided in the Manuals / Instruction sheets,
• make sure the system created using Comelit products has not been tampered with / damaged.
Service
Comelit products do not require maintenance aside from routine cleaning, which should be carried out in accordance with
the indications provided in the Manuals / Instruction sheets.
Any repairs must be carried out:
• for the products themselves, exclusively by Comelit Group S.p.A.,
• for the systems, by qualified technical personnel.
Disclaimer
Comelit Group S.p.A. does not assume any responsibility for
• any purpose other than the intended use,
• non-observance of the indications and warnings contained in this Manual / Instruction sheet.
Comelit Group S.p.A. reserves the right to change the information provided in this Manual / Instruction Sheet at any time
and without prior notice.
Directives/standards
• The manufacturer, Comelit Group S.p.A., hereby declares that the equipment art. 4888C conforms to directives 2014/30/
EU and 2014/35/EU. The full EU conformity declaration is available at the following web address:
https://pro.comelitgroup.com/en-gb/product/4888c
• This product falls within the scope of European product directive 2012/19/UE concerning the management of waste
electrical and electronic equipment (WEEE). The device should not be disposed of as unsorted domestic waste as it
consists of various materials which can be recycled at relevant premises. Contact your local authority to find out the
location of the environmental companies best suited to receiving the product for disposal and subsequent proper
recycling. The product is not potentially harmful to human health, as it does not contain toxic substances as specified in
Directive 2011/65/EU (RoHS), but if abandoned in the natural environment may negatively impact the ecosystem. Read
the instructions carefully before using the product for the first time. We advise against using the product for any purpose
other than its intended use, as improper use may present the risk of electric shocks.
This symbol on the product label indicates that the product complies with the standards concerning
waste electrical and electronic equipment. Improper use of the equipment, or abandoning it in the natural
environment, may be punished by law.
