Rohde & Schwarz SR8000 Series - X22 B - AMP Interface to External Amplifier: D-SUB Connector, 25-Pin

Chapter 9 Appendix
5300.9677.72 - 9.8 - EN-4
1.2.6 X22B – AMP Interface to External Amplifier: D-SUB Connec-
tor, 25-Pin Male
Message 10
Common
Input X22A.20 Return line for message 10
Message 10 NO
contact
Output X22A.21 Local mode (NO contact)
Message 10 NC
contact
Output X22A.22 Remote mode (NC contact)
Message 11 NO
contact
Output X22A.23 Standby (NO contact)
Message 11 NC
contact
Output X22A.24 Standby (NC contact)
Message 11
Common
Input X22A.25 Return line for message 11
Signal name Direction Value range Contact Remarks
GND Two Way 0 V X22B.1 Ground
GND Two Way 0 V X22B.2 Ground
RESET Output 0 V / 5 V X22B.3 High: Reset
Not used in the amplifiers at
present
VREF_PWR Output 0 V to 5 V,
4V for P
nom.
X22B.4 Control voltage for the
amplifier power, referenced
to GND
PWR_OUT_EXT Input 0 mA to 2.5 mA/0 V
to 5.5 V
1.818 mA/4 V for
P
nom.
Inp. Res. 2200 Ω
X22B.5 Detector input for forward
power indicator at transmit-
ter output (after combiner)
CAN_L Two Way CAN_L X22B.6 CAN Low
+12V_EXTI Input +12 V X22B.7 Power supply incoming
+12V_EXTI Input +12 V X22B.8 Power supply incoming
+12V_EXTI Input +12 V X22B.9 Power supply incoming
+12V_EXTI Input +12 V X22B.10 Power supply incoming
GND Two Way 0 V X22B.11 Ground
Signal name Direction Value range Contact Remarks