Low-voltage systems and video surveillance

What low-voltage systems connect

Low-voltage systems connect workstations, cameras, badge readers, public address, intercom and fire detection. You notice them when they fail: a camera switched off for weeks, a recording that cannot be found, a former employee's badge still active.

SADIS, a Moroccan company with its registered office in Laâyoune and an operational office in Casablanca, installs and maintains this equipment, from cabling to applications.

Structured cabling

Cameras, badges, Wi-Fi access points and phones all run over the same physical network. Laid piecemeal as needs arise, it weakens every addition.

• Category 6 and 6A copper For workstations and network-powered equipment, each outlet labelled.
• Single-mode or multimode fibre optics Between buildings, floors or the warehouse, where copper is no longer enough.
• 19-inch racks Patching, switches and recorders neatly arranged, cables labelled, power protected.
• Link acceptance testing Every link is tested and the result recorded.

Public address, intercom and fire detection are part of the same plan. Switches and Wi-Fi belong to the network: see our IT network cabling and Wi-Fi page.

Business video surveillance

A camera is only useful if its image shows what you are looking for on the day of the incident. The placement study first identifies the sensitive points: entrances, loading docks, till, high-value stock, car park, technical room.

It then defines what each camera covers and what it must allow you to identify, taking lighting into account: backlight, dark areas, differences between day and night. The camera plan is approved before installation. The study thus avoids two common defects: cameras filming walls, and key areas left out.

IP cameras and mobile playback

IP cameras are powered over the network (PoE): a single cable carries both the image and the power. The ONVIF standard makes it possible to combine several brands. We work in particular with Hikvision, Dahua and Axis, without being an authorised reseller: equipment is chosen to suit the site.

The NVR recorder or video management software (VMS) is sized according to the number of cameras and the retention period. Live view and playback work on desktop as well as on mobile, with per-user permissions: who can view, who can play back, who can export.

A recorder exposed on the Internet with its default password is an open door: we secure its remote access (see cybersecurity).

Law 09-08 and the CNDP

Video surveillance processes personal data within the meaning of Law 09-08. For workplaces, the CNDP set out its rules in Deliberation No. 350-2013 of 31 May 2013, summarised in its fact sheet on video surveillance in the workplace (both in French):

• A prior declaration The system is declared to the CNDP before it goes live (form F-114), together with the model sign.
• Three months at most Images are not kept for more than three months.
• A sign at the entrance It states the name of the organisation, the presence of cameras, their purpose, the contact for exercising the rights of access, rectification and objection, and the CNDP receipt number.
• Excluded areas No camera may be used to monitor one or more employees, nor placed in places of worship, trade union premises, toilets, meeting rooms or break areas.

We position the cameras and configure the recorder within this framework, and the chosen retention period determines the storage capacity. The declaration remains your company's responsibility; we do not provide legal advice.

Biometrics are subject to stricter rules. According to Deliberation No. 478-2013, they are reserved for access control to sensitive premises with restricted movement and require prior authorisation from the CNDP. The biometric template is in principle stored on a card kept by the person. Time tracking and everyday access therefore rely on badges.

Access control and time tracking

Access control answers what keys cannot: who enters, where and at what time.

• RFID badge With equipment such as ZKTeco: permissions by zone and by time slot, a lost badge revoked immediately.
• Biometrics in restricted areas Only for sensitive premises, after authorisation from the CNDP.
• Intrusion detection Detection outside opening hours, in addition to the cameras.
• Time and attendance management Badge entries and exits replace the sign-in sheet.

What you receive

• The as-built documentation (DOE), with cabling plans and diagrams.
• The camera placement plan and the security system diagram.
• The labelling register and the operating documentation.
• The configuration sheet: retention period, accounts and permissions.
• The joint acceptance report, drawn up with you.
• User training in playing back and exporting footage.

Administrator accounts are handed over to your company, which remains in control of the installation.

Works without disruption

Works are carried out in the evening or at the weekend if necessary, with a prepared cutover to limit disruption.

A reference contact can be provided during a meeting, with the client's consent. See our references.

Maintenance and commitments

A dirty lens or a full disk goes unnoticed. Scheduled preventive visits check lenses, recordings and disk space, with a written report. Under contract, during business hours:

• Acknowledgement of any request within 24 business hours.
• Remote intervention in under one hour.
• On-site intervention in under 4 hours in and around Casablanca, within 48 hours outside Casablanca, in under 12 hours in an emergency.
• A 12-month warranty on turnkey projects, with the manufacturer's warranty applying depending on the equipment.

Workstation support falls under IT fleet maintenance.

How a project runs

1. Free on-site audit Survey of your existing setup and requirements, before any quote.
2. Costing based on plans No work begins without a signed approval.
3. Deployment Installation, connection and configuration.
4. Acceptance and handover DOE, configuration sheet and training.
5. Maintenance Under contract, optional.