Data sheet – Procom 4NPA User Manual

Page 4

Data Sheet

4NPA

LF Interface Module

The Front Plate Symbols and their Meaning:

The System Blinker
Addressing from processor taking place

I/O Input/output

BUS output works as push-push operation with the system blinker
BUS input works as push-pull operation with the system blinker

Sending/receiving

status

(depending on set)

LED blinking:

LF signal being sent

LED lit:

LF signal being received

Fuse

(depending on set)

LED off:

Fuse has been triggered

Technical Data:

Operating Voltage:

48 V

(power level)

Operating Voltage:

+/-5 V

(control)

Feeding Current (48 V): Max. 4x 1.5 A to the third-party call stations

Operational Current (+5V ):

Max. 60 mA

LW Interfaces:

4x 300 Hz - 3400 Hz

Temperature Range: 0 °C to 45 °C

Weight:

300 g

Date:

13.03.2009 1 Page:

4/5 Author:

Document-No.:

DB_4NPA_2320_01