Edwards 3X-NET — RS-485 network adapter card that gives an EST3X control panel the ability to join an EST3 network of up to 64 nodes.
The card mounts on the EST3X SFS1-CPU main board and provides two independent RS-485 circuits, one for network data and one for digital audio. That audio circuit is what separates it from the data-only 3X-NET8; the ordering table lists the 3X-NET for node counts above eight or for connection to EST3 systems.
- 24 VDC; 98 mA standby and 98 mA alarm
- Two RS-485 circuits, data and audio, each Class A Style 6 or Class B Style 4
- Network A port not isolated, network B port isolated; audio inputs isolated
- Twisted pair, 18 AWG minimum, six twists per foot
- Circuit length 5,000 ft between any three panels
- Circuit resistance 90 Ω max; capacitance 0.3 µF data, 0.09 µF audio
- 32 to 120 °F (0 to 49 °C), 93% RH noncondensing
Check the siblings before ordering: 3X-NET8 is capped at eight nodes with no audio circuit, 3X-FIB and 3X-FIB8 are fiber motherboards for MMXVR, SMXHI2 or SMXLO2 transceivers, and 3X-ETH1 is an Ethernet adapter, not a node card.
