User guide

Data Sheet

24LI

24 Line Module

24LI

24 Line Module for Expanded Control Functions

Fig. 24LI (L- No. 2.824)

At a Glance:

• Control function for a total of 24 keys of call stations in line

technology

• Control functions and acknowledgements of command

signalling systems (PABX)

• Control functions for e.g. card racks

Date: 25.03.2009 Page:

1/4

Author:

Document-No.:

DB_24LI_2824_01

PAGE 1
Data Sheet 24LI 24 Line Module 24LI 24 Line Module for Expanded Control Functions Fig. 24LI (L- No. 2.824) At a Glance: Date: • Control function for a total of 24 keys of call stations in line technology • Control functions and acknowledgements of command signalling systems (PABX) • Control functions for e.g. card racks 25.03.2009 Page: 1/4 Author: HS Document-No.
PAGE 2
Data Sheet 24LI 24 Line Module The DVS-21 is capable of connecting not just our own but also third-party devices. The module 4NPA makes possible an LF (low frequency) connection and control over the C and V point of four devices. In order to meet other control requirements the line module 24LI is additionally required.
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Data Sheet 24LI 24 Line Module Function Description: The principle functions are illustrated in the following block diagram.
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Data Sheet 24LI 24 Line Module The Front Panel 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 systemblinker BUS input works as push-pull operation with the system blinker 1 ⋅⋅⋅ 24 Send/ Receive Status (depending on set) LED blinks: LF signal being sent LED lit: LF signal being received Technical Data: Operating Voltage: +/-5 V (control) Line Output: 0 V/-48 V (control) Line Input: 0 V/-48 V Li