Honeywell ESSER Serial essernet Interface SEI1 - TWI-RS232 Adapter (Part No. 583386.21); Specifications - SEI1

Serial essernet
®
interface (SEI1)
62 FB 798819 / 05.18
10.5 TWI-RS232 adapter (Part No. 583386.21)
The VARIODYN
®
D1 system can be connected to ESSER fire alarm systems via the TWI
interface using the TWI-RS232 adapter and the serial essernet
®
interface (SEI1).
The TWI-RS232 adapter is used to transfer the TWI data to the RS232 protocol. The adapter is
connected to the DOM directly or via the supplied Cat5 cable.
RxD
TxD
GND
+
-
+
-
X12
2
3
5
1
2
3
4
Fig. 17: Connection diagram TWI-RS232 adapter and SEI1

Serial essernet
®
interface (SEI1)

RS232 cable

TWI-RS232 adapter (Part No. 583386.21)

DOM
11 Specifications - SEI1
Operating voltage : 10.5 V DC to 28 V DC
Current cunsumption : approx. 60 mA @ 12 V DC
Ambient temperature : -5 °C to +50 °C
Storage temperature : -10 °C to +50 °C
Protection rating : IP 31
Housing : ABS-plastic
Colour : white, similar to RAL 9003 / blue, similar to RAL 5003
Dimensions (W x H x D) : 270 x 221 x 71 (mm) incl. housing