Honeywell 784850 Series essernet Interface SEI2 (TTY / RS232 / RS485)
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Honeywell 784850
The serial essernet Interface SEI2 enables bidirectional data transmission and remote control between ESSER fire alarm control panels (800x series, IQ8Control, FlexES Control) and external EDP-compatible systems via TTY or RS232/RS485.
Connection Interfaces
Supports TTY, RS232, and RS485 connections.
Compatibility
Compatible with ESSER 800x series, IQ8Control, and FlexES Control panels.
Power Consumption
Approx. 30 mA at 12 V DC without module, approx. 130 mA with module; approx. 20 mA at 24 V DC without module, approx. 70 mA with module.
Physical Characteristics
Housing made of ABS plastic, 10% glass fiber reinforced, dimensions W 270 mm × H 221 mm × D 75 mm, and IP 30 protection rating.
Technical Specifications
Model: 784850
Features: Serial essernet Interface SEI2; connects ESSER panels to external EDP systems, provides bidirectional data transmission and remote control.
Operating Voltage: 10.5 - 30 V DC
Current Consumption (without module): Approx. 30 mA at 12 V DC; approx. 20 mA at 24 V DC
Current Consumption (with essernet module): Approx. 130 mA at 12 V DC; approx. 70 mA at 24 V DC
Output Voltage: positive safety only
Dimensions: W 270 mm × H 221 mm × D 75 mm
Material: ABS plastic, 10% glass fiber reinforced (V-0)
Color: Grey (similar to Pantone 538)
Protection: IP 30
Connection: Screw terminals; FO connector
Operating Temperature: -5 °C ~ +50 °C
Storage Temperature: -10 °C ~ +50 °C
Environmental Conditions: Class 3k5, DIN EN 60721-3-3
Interface and Compatibility: TTY, RS232, RS485; optional essernet module integration 62.5 kBd or 500 kBd; compatible panels ESSER 800x series, IQ8Control, FlexES Control
Scope of Delivery: Basic module in housing
Accessories to be Ordered Separately: 784870 M4-RS232-iso, 784871 M4-RS485-iso, 784872 M4-TTY, FX808340 essernet module 62.5 kBd, FX808341 essernet module 500 kBd
Shipping & Return Terms
Fast Shipping: 24-hour delivery within North Cyprus · 3–5 business days between Türkiye and North Cyprus
Returns: 14-day no-questions-asked returns · In original packaging, unused
Warranty: All products are distributor approved and carry a 24-month warranty.
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