The AKCP E‑opto16 expansion module extends the proven securityProbe monitoring systems with 16 opto‑isolated dry contact inputs, providing a robust solution for monitoring critical infrastructures in IT environments, data centers, and industrial facilities. Specifically designed for high‑availability and security applications, the E‑opto16 enables precise, scalable, and secure detection of physical states and signals.

Technical Highlights and Features

The E‑opto16 is designed for 19‑inch rack mounting (1U) and comes with matching rackmount brackets. With dimensions of 482.6 × 215 × 47.16 mm and a weight of 0.8 kg, it can be installed compactly and flexibly. All opto‑isolated inputs support 5 – 50 V DC at a maximum of 80 mA per channel, ideal for professional signal monitoring with galvanic isolation.

• Opto‑isolation: protects monitoring hardware from voltage spikes and ground loops
• 16 digital inputs: flexible assignment of individual alarm or sensor states
• Dimensions: 1U rackmount design for server racks
• Communication: 115.2 Kbps data transmission rate via CAT5
• Power supply: 7–9 V DC / 3 A (external power supply)

Daisy‑Chain Configuration for Large Installations

Multiple E‑opto16 modules can be connected in a daisy‑chain topology via the E‑In and E‑Out ports. Each module can be placed up to 300 m from the base system, allowing flexible installations across large areas. The distance between individual modules can also be up to 300 m – perfect for extensive industrial sites or distributed server rooms.

Power Consumption and Operating Conditions

Typical power consumption is only 5.025 W (0.67 A). The device is built for harsh environments and operates reliably within a temperature range of −35 °C to +80 °C and 20 – 80 % relative humidity (non‑condensing). With an MTBF of 400,000 hours, the module offers outstanding reliability in continuous operation.

SNMP Integration and Management

Each E‑opto16 is equipped with its own SNMP OID identifiers and is fully supported by securityProbe devices. Seamless integration into professional network management systems is possible, including:

• Nagios
• HP OpenView
• OpenNMS
• WhatsUp Gold
• Cacti / MRTG for trend and long‑term analysis

All required MIB files and SNMP utilities are included with the AKCP monitoring systems.

User‑Friendly Interface and LED Status Indicators

A series of LED indicators on the device front panel display the status of each input. In addition to power and communication LEDs, the user can instantly see which contacts are active or sending signals – useful for on‑site service technicians without software access.

Scalability and Compatibility

A securityProbe 5E monitoring system can manage up to 37 E‑opto16 modules – a total of 592 inputs. This makes the solution ideal for large‑scale enterprise networks, power utilities, and telecommunications environments.

Comparison with Other AKCP Expansions

• E‑opto16 vs. X20 / X60: The X‑module can switch between opto‑isolated and non‑isolated modes, while the E‑opto16 operates fully galvanically isolated – ideal for industrial signal environments.
• E‑opto16 vs. IO‑Digital8: The IO‑Digital8 also provides 5 V outputs; the E‑opto16 is optimized for higher signal voltages (5 – 50 V DC) and designed exclusively for input signals.
• E‑opto16 vs. DCS15: The DCS15 offers only a single port; for extensive contact monitoring, the E‑opto16 is significantly more powerful.

Typical Applications

• Server Room Monitoring: door contacts, smoke and water detectors, alarm systems
• Industrial Applications: machine monitoring, production status, process control
• Building Automation: integration of access systems, fire alarms, or network switches
• Power Supply: monitoring of UPS systems, generators, and power distribution units
• Telecommunications: monitoring of air conditioners, power supplies, and BTS stations

Easy Installation and Maintenance

The E‑opto16 connects directly to any expansion port of a securityProbe using CAT5 RJ‑45 cables. The hot‑plug function allows modules to be added or removed during operation without shutting down the entire system. Industrial‑grade components and energy‑efficient SMT technology ensure maximum reliability and minimal maintenance costs.

Professional Signal Monitoring with Maximum Stability

The AKCP E‑opto16 expansion module is a high‑quality, scalable solution for monitoring numerous dry contacts over long distances. With its opto‑isolated inputs, SNMP integration, daisy‑chain flexibility, and industrial‑grade reliability, it is the ideal choice for enterprises seeking to expand their monitoring infrastructure professionally.