Dahua DH-LR1002 - Ethernet over Coax EoC Passive Converter

Dahua DH-LR1002 — Ethernet over Coax EoC Passive Converter, RJ45 to BNC

The Dahua DH-LR1002 is a small passive converter for Ethernet over coax (EoC). It has one RJ45 port and one BNC port, so an IP camera can run over an existing RG59 coax cable instead of a new network cable.

Over RG59 it reaches up to 400m at 100Mbps or up to 1000m at 10Mbps. It needs no local power: it is powered over the coax from a Dahua ePoE switch running at 48V or 53V, and draws less than 1W itself. The power left for the camera falls as the cable gets longer, from 25.5W at 100m to 15W at 400m on a 48V switch.

It supports IEEE 802.3 and 802.3u with MDI/MDIX self-adaptation, has 6kV common mode and 2kV differential mode lightning protection, and works from -40 to +60 degrees C. It measures 56 x 27 x 21mm.

Also listed as LR1002. This page is for the passive DH-LR1002 converter; DH-LR1002-1ET-V3 and DH-LR1002-1EC-V3 are separate Dahua codes.

Key features

• Converts between CAT5E/CAT6 Ethernet and coaxial cable, so existing analogue CCTV coax runs can carry IP cameras.
• Up to 400 m at 100 Mbps or 1000 m at 10 Mbps over RG59 coax.
• Passive: power comes from an ePoE switch or ePoE NVR, with no separate power supply for the converter.
• One RJ45 10/100 Mbps Base-TX port and one BNC port; supports IEEE 802.3 and 802.3u.
• Lightning protection of 6 kV common mode and 2 kV differential mode.
• Operates from -40 °C to +60 °C at 0% to 95% humidity; power consumption below 1 W.

Technical specification

Power budget over RG59 coax (48V ePoE switch)

Dahua's figures assume RG59 coax with DC resistance no more than 5 ohms per 100m. With a 53V ePoE switch the loads are higher (for example 20W and 23W at 400m).

Works with

• Dahua DH-LR2110-8ET-120-V2 ePoE switch
• Dahua DH-IPC-HFW5541TP-ASE 5MP bullet camera
• Dahua DH-IPC-HFW5541EP-ZE-27135 5MP varifocal bullet camera
• Dahua DH-IPC-HFW3649TP-ZAS-IL-27135 6MP Vari-focal Bullet: a PoE (802.3af) IP camera; Dahua lists a maximum of 12.5W on PoE
• Dahua DH-IPC-HDW3849HP-AS-PV-0280B-PRO 8MP Eyeball: a PoE (802.3af) IP camera with a maximum of 10W on PoE

Pairings are suggested on general compatibility (same brand, matching connection type and specification), not as tested combinations.

Common questions

Does it need a power supply?

No. It is passive and is powered over the coax from an ePoE switch or ePoE NVR.

How far can I go?

Up to 400 m at 100 Mbps or 1000 m at 10 Mbps on RG59 coax.

Can I reuse my existing analogue CCTV coax?

Yes. Dahua designs ePoE to convert existing coax-based analogue systems into IP systems, using RG59 coax. Dahua's application diagram shows an LR1002 at each end of the coax run, and the camera connects to its converter with a short network lead.

Will it work with a normal PoE switch?

Dahua designs it to work with an ePoE switch or ePoE NVR, which drives the coax directly.

What do I need at the recorder end?

A Dahua ePoE switch, such as the DH-LR2110-8ET-120-V2, or an ePoE NVR, to supply the power. Dahua's application diagram shows an LR1002 at the switch end of the coax as well as at the camera end, so plan for one converter at each end of every run.

Does the DH-LR1002 have lightning protection?

Yes. Dahua lists lightning protection of 6kV common mode and 2kV differential mode.

What operating temperature does it handle?

Dahua lists an operating temperature of -40 to +60 degrees C and operating humidity of 0 to 95%.

How big is it?

It measures 56 x 27 x 21mm and weighs 28.3g, according to Dahua.

Full manufacturer specification: Dahua product page

Supplied by Zenith Security Co, Wolverhampton. We deliver to England, Scotland and Wales, or you can collect from our Wolverhampton trade counter (please call first).

Browse the full Dahua range, more IP cameras, or contact us on 01902 902251 or visit our Wolverhampton trade counter for advice.