Quantum Composers Motorized Attenuator - Manual (Page 3)

4 Electrical Connections
The motorized attenuator module requires two input voltages to be applied for
operation:
+5VDC @ 100mA.
+12VDC @ 500mA.
The included power/communications cable includes the minimum connections for
operation. Detailed electrical connections are described in the tables below.
Input Connector (Connector: Hirose #DF11-12DS-2C, Contacts Hirose #DF11-2428SC)
Pin Number Type Description
1 Ground Power Ground
2 Power input +5VDC
3 Power input +12VDC
4 Power input +12VDC
5 Ground Power Ground
6 Ground Power Ground
7 Input RS232 Receive (from PC or other module)
8 Output RS232 Transmit (to PC or other module)
9 Input Analog reserved (do not connect)
10 Ground RS232 Ground
11 N/C No connection
12 Input/Output Bus sense line (connect between modules)
Output Connector (Connector: Hirose #DF11-12DS-2C, Contacts Hirose #DF11-2428SC)
Pin Number Type Description
1 Ground Power Ground
2 Power output +5VDC
3 Power output +12VDC
4 Power output +12VDC
5 Ground Power Ground
6 Ground Power Ground
7 Input RS232 Pass-through Out (to other module)
8 Output RS232 Pass-through In (from other module)
9 Input Analog reserved (do not connect)
10 Ground RS232 Pass-through ground
11 N/C No connection
12 Input/Output Bus sense line (connect between modules)