POWER SUPPLY for PTZ Camera Industrial Grade Harsh Environment Hi-POE DH-IS4210-8GT-120 DH-HS4210-8GT-110 POE Switch Singapore

DAHUA Industrial & Managed PoE Switch Supply, Installation, Repair and Replacement Singapore

Looking for a reliable DAHUA PoE Switch for CCTV cameras, access control systems, WiFi access points, intercom systems, and industrial networking applications in Singapore?

We supply, install, configure, repair, and replace a wide range of DAHUA managed PoE switches, including:

• DAHUA DH-IS4210-8GT-120 Industrial Managed PoE Switch NEW

• DAHUA DH-HS4208-4GT-90 Hardened PoE Switch 

• DAHUA DH-HS4210-8GT-110 Managed PoE Switch Existing

• DAHUA PFS4210-8GT-DP Industrial PoE Switch

These enterprise-grade switches are designed for demanding surveillance and networking environments where stable power delivery, high-speed data transmission, and network reliability are critical.

Key Features

1. High-Power PoE Output

Supports IEEE 802.3af/at/bt standards, providing power and data through a single Ethernet cable.

2. Gigabit Transmission

Gigabit Ethernet ports ensure smooth transmission of 4MP, 8MP, 12MP, and AI CCTV video streams.

3. SFP Fiber Uplink

Integrated SFP ports allow long-distance fiber optic connections between buildings and remote locations.

4. Intelligent Network Management

Supports VLAN, QoS, STP/RSTP, port isolation, traffic monitoring, and network optimization.

5. Industrial Grade Reliability

Designed to operate under harsh environmental conditions such as factories, power stations, offshore platforms, and outdoor cabinets.

Benefits of DAHUA Managed PoE Switches

✔ Stable power delivery for IP cameras and PTZ cameras

✔ Reduce installation cost by eliminating separate power cables

✔ Simplify CCTV network deployment

✔ Improve system reliability and uptime

✔ Supports long-distance surveillance applications

✔ Compatible with Hikvision, Dahua, Uniview, Axis, Hanwha, TP-Link, Ruijie, Cisco and other ONVIF-compliant devices

✔ Easy expansion of CCTV and security networks

✔ Suitable for commercial, industrial and government projects

Applications

• CCTV Surveillance Systems
• AI Video Analytics Cameras
• Access Control Systems
• Video Intercom Systems
• Industrial Automation Networks
• Smart Building Infrastructure
• Power Stations
• Warehouses
• Data Centres
• Schools and Campuses
• Manufacturing Plants
• Offshore and Marine Facilities

Why Choose Us?

• Professional DAHUA Switch Installation
• CCTV Network Troubleshooting
• PoE Power Budget Assessment
• Fiber Optic Integration
• Industrial Network Design
• Managed Switch Configuration
• Onsite Repair & Replacement Services
• Singapore Local Technical Support

Website: https://sgcctv.biz

Email: enquiry@choicecycle.com.sg

WhatsApp: +65 98534404

Frequently Asked Questions (FAQ)

1. What is a PoE switch?

A PoE (Power over Ethernet) switch supplies both power and data through a single network cable to devices such as CCTV cameras and access control systems.

2. What is the difference between DH-IS4210-8GT-120 and DH-HS4210-8GT-110?

The DH-IS4210-8GT-120 is an industrial-grade switch with wider temperature tolerance, redundant power options, and enhanced network management features.

3. Can these switches power PTZ cameras?

Yes. Selected ports support high-power PoE suitable for PTZ cameras, AI cameras, and wireless access points.

4. Do DAHUA PoE switches support fiber connections?

Yes. Models with SFP ports support fiber optic uplinks for long-distance networking.

5. Can these switches work with Hikvision cameras?

Yes. DAHUA switches support standard IEEE PoE protocols and are compatible with Hikvision, Uniview, Axis, Hanwha, and other IP cameras.

6. What is the maximum cable distance supported?

Standard Ethernet supports up to 100 meters. Extended transmission modes may support longer distances depending on the model.

7. Are these switches suitable for outdoor installations?

Industrial models such as the DH-IS4210-8GT-120 are suitable for deployment in outdoor cabinets and harsh environments when housed properly.

8. Can I manage the switch remotely?

Yes. Managed models support web-based management, VLAN configuration, monitoring, and network diagnostics.

9. Do you provide installation and configuration services in Singapore?

Yes. We provide supply, installation, programming, troubleshooting, maintenance, and replacement services throughout Singapore.

10. How do I choose the correct DAHUA PoE switch?

Selection depends on the number of devices, PoE power requirements, uplink bandwidth, fiber connectivity needs, and environmental conditions. Our team can recommend the most suitable model for your project.

DAHUA INDUSTRIAL SWITCH DH-IS4210-8GT-120

8-Port Gigabit PoE DIN-Rail Managed Switch | CCTV & Security System Singapore

The DAHUA DH-IS4210-8GT-120 is a professional Layer-2 industrial managed Gigabit PoE switch designed for CCTV and security networks operating in demanding environments. It combines 8 × Gigabit PoE RJ45 ports + 2 × Gigabit SFP fiber ports, providing a total of 10 network ports in a compact DIN-rail/desktop industrial enclosure. (Dahua Technology)

It is particularly suitable for CCTV cameras, high-power PTZ cameras, WiFi access points, video intercom, facial-recognition terminals, door-access systems and remote fiber-connected security nodes.

Key Specifications

These specifications are from Dahua’s current product listing and July 2024 datasheet. (Dahua Technology)

8-Port Gigabit PoE + 2-Port SFP Fiber

The architecture is ideal for a remote CCTV node:

8 × CCTV / PTZ / Security Devices
↓ Cat6 PoE
DH-IS4210-8GT-120
↓ 2 × Gigabit SFP
Fiber Backbone
↓
Core Switch → NVR / VMS / Control Room

Ports 1–8 operate at Gigabit Ethernet speeds, while ports 9–10 are Gigabit SFP interfaces. (Dahua Security Transmission)

120W Intelligent PoE

The switch has a 120W total PoE budget.

Ports 1 and 2 are the high-power ports and support up to 90W per port, while ports 3–8 support up to 30W each. The total simultaneous load must remain within the switch’s 120W budget. (Dahua Technology)

A practical configuration could therefore be:

Port 1 → High-Power PTZ
Port 2 → WiFi AP / PTZ
Ports 3–8 → Fixed IP Cameras

This makes the IS4210 substantially more flexible than a basic PoE+ switch when higher-power security equipment is involved.

IEEE 802.3bt 90W High-Power PoE

The red high-power ports support:

IEEE 802.3af PoE
IEEE 802.3at PoE+
DAHUA Hi-PoE
IEEE 802.3bt PoE

Dahua specifically rates the red ports for up to 90W maximum output per port, subject to the total PoE budget. (Dahua Security)

This can support compatible high-power equipment such as larger PTZ cameras, wireless APs and other IEEE 802.3bt-powered devices.

250m Long-Distance PoE

For conventional installations:

0–100m → Gigabit PoE

For long-distance CCTV:

150–250m → Extended PoE at 10Mbps

Dahua’s own testing shows that at 250m, available endpoint power depends on the PoE mode: approximately 40W under its 90W 802.3bt test, 37W under Hi-PoE 60W, and 25.5W under 802.3at 30W. Actual performance varies with cable quality, resistance and endpoint consumption. (Dahua Technology)

Therefore, 250m PoE should not be advertised as 250m Gigabit.

For very long or mission-critical links, fiber + a remote PoE switch remains the preferred network architecture.

PoE Watchdog – Automatic Camera Recovery

The IS4210-8GT-120 supports PoE Watchdog. (Dahua Security)

A typical recovery sequence is:

IP Camera Stops Responding
→ PoE Watchdog Detects Failure
→ PoE Port Restarts
→ Camera Reboots
→ Network Connection Recovers

This can reduce unnecessary maintenance trips caused by recoverable endpoint lockups.

Industrial -40°C to +75°C

A major difference between this model and ordinary commercial PoE switches is its -40°C to +75°C operating-temperature specification. (Dahua Technology)

That makes it particularly attractive for equipment cabinets and harsher operating environments such as:

Factories • Warehouses • Guard Houses • Car Parks • Infrastructure • Remote CCTV Cabinets • Industrial Plants • Outdoor Security Enclosures

The switch itself is not an outdoor weatherproof enclosure; environmental protection still depends on the cabinet and installation design.

DIN-Rail Installation

The compact industrial chassis supports DIN-rail mounting, making it well suited to:

CCTV Control Panels

Electrical / ELV Cabinets

Network Cabinets

Security Equipment Panels

Industrial Control Cabinets

Dahua also supports desktop mounting. (Dahua Security Transmission)

One important procurement point: Dahua specifies that the power adapter is not included with the switch. The switch requires the appropriate DC supply. (Dahua Security)

SFP Fiber Optic CCTV Network

A strong application is connecting a remote building back to the main CCTV room:

REMOTE BUILDING

Camera 1 ─┐
Camera 2 ─┤
Camera 3 ─┤
Camera 4 ─┤
PTZ ──────┤
AP ───────┤
          ▼
┌─────────────────────┐
│ DAHUA IS4210-8GT-120│
│ 8 × GE PoE          │
│ 2 × GE SFP          │
└──────────┬──────────┘
           │
         SFP
           │
════════ FIBER ════════
           │
         SFP
           ▼
     CORE SWITCH
           │
     ┌─────┴─────┐
     ▼           ▼
   NVR/VMS      LAN

Fiber distance depends on the selected SFP module and fiber type. Dahua documentation lists both single-mode and multimode SFP options for this platform. (Dahua Security)

VLAN for Security-System Integration

The switch supports IEEE 802.1Q VLAN, allowing one physical switch to carry several logically separated security networks. (Dahua Technology)

For example:

VLAN 10 — CCTV

VLAN 20 — Door Access

VLAN 30 — Video Intercom

VLAN 40 — WiFi AP

VLAN 50 — IP Phone

VLAN 99 — Network Management

This is particularly useful for integrated commercial security projects where CCTV, access control and other IP systems share the same fiber backbone.

ERPS + STP/RSTP + LACP

The IS4210-8GT-120 supports STP, RSTP, ERPS and link aggregation/LACP. (Dahua Technology)

For larger installations, ERPS can be useful for designing resilient fiber-ring architectures:

Switch A → Switch B → Switch C → Switch D → Switch A

This is especially relevant to factories, campuses, transport infrastructure, warehouses and multi-building CCTV systems.

DoLynk Care Cloud Management

The current Dahua specification also lists centralized cloud management through DoLynk Care, alongside Web and SNMP management. (Dahua Technology)

This provides a useful maintenance architecture:

Customer Site A
Customer Site B
Customer Site C
Customer Site D
↓
DAHUA DoLynk Care
↓
Centralized Supported Device Management

For a security-system service provider, remote visibility can help reduce troubleshooting time before deciding whether an onsite visit is necessary.

Recommended CCTV Installation

                    INTERNET
                       │
                 ROUTER/FIREWALL
                       │
                  CORE SWITCH
                   │       │
                   │      NVR
                   │
               SFP FIBER
                   │
                   ▼
        ┌─────────────────────┐
        │ DH-IS4210-8GT-120   │
        │ INDUSTRIAL PoE      │
        └─┬─┬─┬─┬─┬─┬─┬─┬───┘
          │ │ │ │ │ │ │ │
          ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼
         C1 C2 C3 C4 C5 C6 PTZ AP

                    POWER
                      │
                    UPS
                      │
            ┌─────────┴─────────┐
            ▼                   ▼
        PoE Switch             NVR

For security installations requiring backup operation, the PoE switch, NVR, router and relevant core switches should all be considered in the UPS load calculation.

10 Major Benefits

1. 8 × Gigabit PoE ports
2. 2 × Gigabit SFP fiber ports
3. 120W total PoE capacity
4. Up to 90W high-power PoE ports
5. IEEE 802.3bt support
6. Up to 250m extended PoE
7. PoE Watchdog
8. DIN-rail industrial installation
9. -40°C to +75°C operation
10. VLAN + ERPS + LACP + DoLynk Care management (Dahua Technology)

10 FAQ

1. Is the IS4210-8GT-120 an 8-port or 10-port switch?
It has 10 network interfaces in total: 8 Gigabit PoE RJ45 + 2 Gigabit SFP. (Dahua Security Transmission)

2. Is every RJ45 port Gigabit?
Yes. Ports 1–8 are 10/100/1000Mbps. (Dahua Technology)

3. What is the total PoE budget?
120W maximum. (Dahua Technology)

4. Does it support 90W PoE?
Yes. Ports 1–2 support up to 90W per port, subject to the overall power budget. (Dahua Security)

5. Can it power PTZ cameras?
Yes, provided the PTZ’s PoE standard and maximum power requirement are compatible.

6. Does it support fiber optic connections?
Yes. It has 2 × Gigabit SFP ports. (Dahua Security Transmission)

7. Can it transmit PoE up to 250m?
Yes, under specified conditions. Extended operation is 10Mbps, not Gigabit, at the longer distances. (Dahua Security)

8. Does it support DIN-rail installation?
Yes. Both DIN-rail and desktop installation are supported. (Dahua Technology)

9. Is the power adapter included?
No. Dahua specifies that the required power supply is purchased separately. (Dahua Security)

10. Is it suitable for CCTV security systems?
Yes. Its PoE, fiber, watchdog, VLAN, industrial-temperature and network-management features make it particularly suitable for professional IP CCTV infrastructure.

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