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REAR PANEL CONNECTIONS
INTERFACE
Alarms, monitoring and control of the Converter units.
Unit 2 Amplifier N/O
Unit 2 Amp Common
Unit 2 Not connected
Unit 2 Not connected
Unit 2 Power N/C
Unit 2 Power Common
Unit 2 Online input (note 1)
Ground
Note 1; these are INPUTs to control the front panel module online/ standby LED's only for use with
external 1+1 switch units. If the internal 1+1 switch option is fitted then these pins are not connected.
REMOTE
15-way, D type RS232/485 serial interface. Configuration for baud rate and addresses are set inside the
unit as described later.
When the DLA200 has the Ethernet option (option 9), the 15 way D type connector is replaced by a
RJ45 Ethernet connector.
POWER CONNECTIONS
The unit contains 2 redundant switch mode power supplies. The voltage input can be in the range of
100-240VAC. The unit is designed to work off both or one of the 2 feeds. In normal condition the Left
hand MLA will be powered from the left hand mains input and the right hand MLA will be powered
from the right hand mains inlet. Fault condition of only one mains input present will power both sides
from the single mains input
SLOT DESIGNATIONS
The Slots for the MLA units are designated Unit 1 and Unit 2, looking from the front of the unit the
RHS slot is for unit 1 and the LHS slot is for unit 2. This is also indicated on the rear panel.
When the MLA unit is slotted into position the external mounting screws must be fully tightened.
Issue 1.15
1
2
3
4
5
6
7
8
Not used
1
RS485 Rx -
2
RS485 Tx -
3
Not used
4
Not used
5
RS232 Rx
6
GROUND
7
Not used
8
DLA200 Dual Line Amplifier Unit
9
Unit 1 Amplifier N/O
10
Unit 1 Amp Common
11
Not connected
12
Not connected
13
Unit 1 Power N/C
14
Unit 1 Power Common
15
Unit 1 Online input (note 1)
9
Not used
10
RS485 Rx +
11
RS485 Tx +
12
Not used
13
RS232 Tx
14
Not used
15
Not used
Page 6
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