Hikvision Wired 4-Way Low Current Relay Expander | DS-PM1-O4L-H
Hikvision Wired 4-Way Low Current Relay Expander | DS-PM1-O4L-H
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Hikvision Wired 4-Way Low Current Relay Expander | DS-PM1-O4L-H
The Hikvision DS-PM1-O4L-H is a wired 4-way low current relay expander for the Hikvision AX Hybrid Pro alarm system. It connects to a 6-30 V source and opens or closes each circuit on command from the control panel over the Speed-X bus, with each relay handling up to 5 A.
Key Features:
4 Low-Current Relays: Four on-board relays support 6-30 V and up to 5 A each and are switched on command from the AX Hybrid Pro control panel.
Power Output: One power output supplies up to 500 mA at 9 to 12 VDC for connected devices.
Speed-X Bus with Cascading: Two Speed-X ports, one uplink to the control panel and one downlink to the next expander, let you chain expanders to grow the system.
Tamper and Status: Front and rear tamper protection reports any attempt to open the module, and power and fault LEDs show its status. A TTL serial port is provided.
Works with: The Hikvision AX Hybrid Pro control panel via the Speed-X bus.
Good to know: Needs an 11 to 24 VDC power supply. Operating temperature is -10 °C to 40 °C.
Technical Specifications:
| Model | DS-PM1-O4L-H |
| Relay outputs | 4 low current relays, 6-30 V, up to 5 A each |
| Power output | 1, maximum 500 mA |
| Output voltage | 9 to 12 VDC |
| Bus | 2 x Speed-X (1 uplink to control panel, 1 downlink to next expander) |
| Serial port | 1 TTL serial port |
| Tamper protection | Front and rear |
| LED indicators | 1 power, 1 fault |
| Power supply | 11 to 24 VDC |
| Power consumption | Max 153 mA @ 12 VDC; quiescent 70 mA @ 12 VDC |
| Operating temperature | -10 °C to 40 °C |
| Operating humidity | 10% to 90% |
| Dimensions (W x H x D) | 110 x 155 x 32.5 mm |
| Shell material | Plastic |
| Weight | 285 g |
📄 Datasheet: Download the official Hikvision DS-PM1-O4L-H datasheet (PDF)