Technical data

PAGE 64

Interfaces

A2.4 LSD (Keypad) Interface

Via the LSD interface the system can optionally be operated using the MAGIC

Hybrid Keypad.

A2.5 HSD (Relay) Interface

Three relays with floating outputs are available on this interface.

TAB. 12 PIN ASSIGNMENT: LSD INTERFACE

Socket: LSD (SUB-D, 9-pole)

Port Signal Electrical Characteristics

1 CD Carrier Detect Level: V.24

Transmission Range:max. 15 m

2RxDReceive Data

3 TxD Transmit Data

4 DTR Data Terminal Ready

5 GND Ground

6 DSR Data Set Ready

7RTSRequest To Send

8CTSClear to Send

9 RI Ring Indication

TAB. 13 PIN ASSIGNMENT: HSD (RELAY)-INTERFACE

Socket: HSD (SUB-D, 15-pole)

Port Signal Electrical Characteristics

1 Shield max. Rating: 100mA

2 not used

3 Relay 1a signalling incoming call a

4 not used

5 Relay 2a ON AIR a

6 not used

7 Relay 3a PRE TALK a

8 GND Ground

9 not used

10 Relay 1b signalling incoming call b

11 not used

12 Relay 2b ON AIR b

13 not used

14 Relay 3b PRE TALK b

15 not used