Tx-I/O Power Supply And Bus Modules; Tx-I/O Power Supply Overview - Siemens TALON Series Technical Reference Manual

TX-I/O Power Supply and Bus Modules

TX-I/O Power Supply and Bus Modules

TX-I/O Power Supply Overview

30
Siemens Industry, Inc.
588-587
The TX-I/O Power Supply and Bus Connection Module provide power and
communications for the TX-I/O modules.
Product
TX-I/O Power Supply
(TXS1.12F4)
1
Bus Connection Module
(TXS1.EF4)
1
May be used for Smoke Control installations with Smoke Control Listed Enclosures and
1)
transformers or service boxes. The line to the 24 Vac input transformer must not exceed 1000 VA.
NEC Class 2 wiring may be used up to 96 VA, and NEC Class 1 Power Limited wiring must be
used above 96 VA and up to 1000 VA.
The TX-I/O Power Supply bridges communication and power from one DIN rail to
another and generates 28.8 W (1.2A at 24 Vdc) to power TX-I/O modules and
peripheral devices.
An LED provides an indication of 24 Vdc on the TX-I/O bus.

Up to 4 TX-I/O Power Supplies can be operated in parallel, with a maximum of two

per DIN rail.
It can be located within a row of TX-I/O modules or at the beginning of a new DIN

rail.
The TX-I/O Power Supply performs the following functions:
Transfers 24 Vac at 4A to power TX-I/O modules and peripheral devices.

Provides an input point for 24 Vac to power additional peripheral devices.

‒ Isolates the 24 Vac peripheral device supply in case of overload or short-circuit.
‒ The replaceable AC fuse can be accessed from an installed module.
‒ Indicates the AC fuse status with an LED for easy diagnostics.
Routes the bus signal between DIN rails (+24 Vdc Communication Supply (CS)

and Communication Data (CD) signals).
CONFIDENTIAL: For internal use only
TX-I/O Bus 24 Vdc power
Communication
Signal pass-thru 28.8W at 1.2 A
Signal pass-thru Pass-thru
TALON TX-I/O Modules and Island Bus Technical Reference
Function
24 Vac power
- Output fused at 4A
- NEC Class 2
96 VA max. (Output)
- Class 1 Power Limited
150 VA max. (Input)
- Output fused at 4A
- NEC Class 2
96 VA max. (Output and
Input)
4/6/2010