The Contemporary Controls EIS8-100T EIS Ethernet Switch is an unmanaged Ethernet switch built for fire alarm and smoke control system applications. It is a UL 864 10th Edition Recognized Component, pre-qualified by UL for incorporation into UL Listed fire alarm system end-products without independent component-level retesting. The switch combines 8 RJ-45 copper ports (10/100 Mbps) providing pure-copper Ethernet expansion for fire alarm panels and control systems, with full plug-and-play operation requiring no IP address, web interface, or firmware setup. Power options include 10-36 VDC, 8-24 VAC, diode-isolated redundant DC inputs, and an AC + battery backup mode for fire alarm power continuity. An adjustable mounting bracket allows the same SKU to be either DIN-rail or panel mounted.
UL 864 Fire Alarm Compliance
- ›UL 864 10th Edition Recognized Component
- ›Pre-qualified for use in UL Listed fire alarm systems
- ›ULC-S527-11 compliant (Canadian fire alarm)
- ›UL 508 Listed for Industrial Control Equipment
- ›Covered under UL Follow-Up Surveillance program
8 Copper Ports, Plug-and-Play
- ›8 × 10/100 Mbps shielded RJ-45 ports
- ›Auto-negotiation of speed and duplex on all ports
- ›Auto-MDIX accepts straight-through or crossover cables
- ›Store-and-forward switching, non-blocking wire-speed
- ›2K MAC address table, 300 second aging
- ›ANSI/IEEE 802.3 compliant
Flexible Power with Battery Backup
- ›Wide-range input: 10-36 VDC (6 W) or 8-24 VAC (6 VA)
- ›Diode-isolated redundant DC inputs supported
- ›AC powered with battery backup mode (AC fail rollover)
- ›4-pin removable keyed power connector
- ›Reverse-polarity protection on inputs
Adjustable Mount & Diagnostic LEDs
- ›Adjustable bracket: TS-35 DIN-rail OR panel mount
- ›Single SKU for both mounting styles
- ›Power LED (green) for supply status
- ›Per-port LINK LED (green): solid=link, flashing=data
- ›Per-port HS LED (yellow): glows at 100 Mbps
- ›Rugged metal enclosure
| Specifications | |
|---|---|
| Total Ports | 8 |
| Ports | 8 × 10BASE-T/100BASE-TX, shielded RJ-45, Auto-MDIX |
| Data Rate | 10/100 Mbps, auto-negotiated, half or full duplex |
| Switching Mode | Store-and-forward, non-blocking (full wire-speed) |
| MAC Address Table | 2,048 entries (2K), 300-second inactivity aging |
| Data Storage | 768 Kbits SRAM, 512 byte blocks |
| IEEE Standard | ANSI/IEEE 802.3 |
| Flow Control | PAUSE function (full-duplex), backpressure (half-duplex) |
| Power Input | 10-36 VDC (6 W) or 8-24 VAC (6 VA), 47-63 Hz |
| Power Connector | 4-pin removable keyed connector |
| Power Redundancy | Diode-isolated redundant DC inputs supported (both must supply rated power) |
| Battery Backup | AC powered with battery backup mode (battery charged externally; switch does not charge) |
| Operating Temperature | 0°C to +60°C (+32°F to +140°F) |
| Storage Temperature | -40°C to +85°C |
| Humidity | 10-95%, non-condensing |
| Protection Rating | IP30 |
| Mounting | TS-35 DIN-rail (clip pre-attached) OR panel mount via extendable brackets (#8 pan-head screws, not included) |
| Dimensions (DIN-rail) | 39 × 140 × 156 mm (1.53 × 5.51 × 6.14 in) |
| Dimensions (Panel) | 44.5 × 140 × 191 mm (1.75 × 5.51 × 7.52 in) with brackets extended |
| Shipping Weight | 1 lb (0.45 kg) data sheet; 2 lb (0.9 kg) install guide |
| Enclosure | Rugged metal |
| Wire Size (Power) | 16-20 AWG solid, 16-18 AWG stranded |
| Regulatory | UL 864 10th Ed. Recognized Component (Fire Alarm Systems), UL 508 Listed (Industrial Control Equipment), c-UL Listed (CSA 22.2 No. 14-M91), ULC-S527-11, CE Mark, FCC Part 15 Class A, RoHS |
| UL 508A Compatibility | Directly acceptable as UL 508 Listed Industrial Control Equipment in UL 508A panels |
| Warranty | 2-year limited (Contemporary Controls) |
Frequently Asked Questions
What does UL 864 10th Edition Recognized Component mean for me?
The EIS8-100T has been pre-qualified by UL as a Recognized Component for use in fire alarm and smoke control systems under UL 864 10th Edition. This is different from a UL Listed end-product: a Recognized Component is intended to be incorporated into a larger UL Listed system (such as a fire alarm panel) where the system manufacturer takes responsibility for the end-product listing. Using a UL Recognized Component streamlines the qualification process for the end-product because the component itself has already been tested against UL's component-level safety standards. For fire alarm system suppliers, this means no additional component-level testing is required to incorporate the EIS8-100T into a UL 864-listed end product.
What standards does UL 864 10th Edition cover?
UL 864 10th Edition governs the safety of fire alarm systems and equipment in accordance with NFPA 12 (CO2), NFPA 12A (Halon 1301), NFPA 13 (Sprinkler Systems), NFPA 15 (Water Spray), NFPA 16 (Foam-Water), NFPA 17/17A (Dry/Wet Chemical), NFPA 70 (National Electrical Code), NFPA 72 (National Fire Alarm Code), NFPA 92A/92B (Smoke Control), and NFPA 2001 (Clean Agent). All new fire alarm and smoke control systems claiming UL 864 compliance must comply with this latest 10th Edition.
What if I need a fibre backbone for fire alarm interconnects?
The EIS8-100T is the all-copper variant (8 RJ-45 ports). If your installation requires a fibre uplink for galvanic isolation, lightning protection, or longer cable runs between cabinets, see the EIS6-100T/FC (multimode SC, 2 km), EIS6-100T/FT (multimode ST, 2 km), or EIS6-100T/FCS (single-mode SC, 15 km). All EIS6 variants are also UL 864 Recognized Components.
How does the AC + battery backup mode work?
The EIS8-100T can operate from AC power with a backup battery providing power if the AC source fails. The 4-pin power connector accepts both AC inputs and a backup battery terminal. Important: the EIS8-100T does NOT charge the battery — you must provide separate battery charging provisions in the system design. This is typical for fire alarm system architectures where a dedicated charger and battery monitor handle the battery health, and the switch simply consumes power from whichever source is available.
Can the EIS8-100T be installed in a UL 508A control panel as well?
Yes. In addition to the UL 864 Recognized Component status for fire alarm systems, the EIS8-100T is UL 508 Listed and c-UL Listed for Industrial Control Equipment. UL 508-listed components are directly acceptable for use in UL 508A panels when supplied from a Class 2 limited-energy source per the panel's circuit requirements.
Does the switch require any configuration?
No. The EIS8-100T is fully unmanaged and plug-and-play. It has no IP address, no web interface, and no firmware to set up. Each port auto-negotiates speed (10/100) and duplex (half/full). Auto-MDIX accepts straight-through or crossover cables on copper ports.
Can I mount it on a DIN-rail or directly to a panel?
Both. The EIS8-100T ships with a TS-35 (35 mm) DIN-rail clip pre-attached. To switch to panel mount, remove the clip, extend the integrated mounting brackets at top and bottom, and secure with two #8 pan-head screws (not included). This single-SKU dual-mount design simplifies inventory and field changes. Note: with brackets extended, the unit is approximately 7.5 inches tall; with brackets retracted (DIN mode), it is approximately 6.1 inches tall.
What do the front-panel LEDs indicate?
A single PWR LED (green) glows when proper power is applied to the switch. Each port has two LEDs: a LINK LED (green) that glows solid when a valid Ethernet link is established and flashes during data transfer, and an HS LED (yellow) that glows when the port is operating at 100 Mbps.
- Sub-Category:
- Smoke and Fire UL 864
