R&S 4200 Series - Headset Connector X21; Fig. 6.16 Headset Connector X21

Interface Description R&S XU 4200
6.17 6166.5368.02.01
6.2.16 Headset Connector X21
MDN-S-07-F-S (7 pins)
Fig. 6.16 Headset connector X21.
Entry in column D (direction): O = Output I = Input B = Bi-directional
Entry in column T (type): A = Analog D = Digital P = Power
Signal description D T Range Contact Remarks
AF_HEADPHONES+ O A X21.1
AF_HEADPHONES−
O A
0 V to 1 V
rms into
150  load min.
Volume controllable
via potentiometer
X21.2
Earphones output
D_MICROPHONE_IN I A X21.3
D_MICROPHONE_GND I A
1 mV ± 20 dB
Input impedance
200 
Automatic level
controlled (ALC)
X21.8
Dynamic microphone
V_MICROPHONE_IN I A 100 mV ± 20 dB
Input Impedance
330 
DC 8 V ± 10 %
Automatic level
controlled (ALC)
X21.5 Electret microphone
/PTT_LOCAL I A Contact against GND
= transmit
X21.6 Push-To-Talk input
GND B P X21.7 Return from PTT
SHIELD B P Connector
shield
Cable shielding
WB X22\WB X22 "Radio".doc
Headphone co nnector X23\ Headphone co nnector X23 "Name".doc