4-4 Installation and Service Guide N5251-90001
PNA Series Microwave Network Analyzer System 
N5251A
N5251A Test Head Bias-Tees Specifications
System Specifications
Specifications
N5227A Rear Panel Specifications
Table 4-2  N5227A Rear Panel IF Inputs
IF Connector Input Frequency 8.333 MHz
0.1 dB Compression Points at IF inputs –27.0 dBm
Nominal Input Impedance at IF Inputs 50 Ohms
RF Damage Level to IF Connector Inputs
–20.0 dBm
DC Damage Level to IF Connector Inputs 25 Volts
Table 4-3  N5227A RF and LO Outputs
Rear Panel LO Power - Test Port Frequencies Above 67 GHz
67 GHz to 110 GHz
a 
-7 to –13 dBm
Rear Panel RF Power - Test Port Frequencies Above 67 GHz
a. For rear panel LO port frequency, divide by 8.
b. For rear panel RF port frequency, divide by 6.
67 GHz to 76 GHz
b 
-4 to –10 dBm
76 GHz to 96 GHz
b 
96 GHz to 110 GHz
b
+1 to –5 dBm
+5
 to –1 dBm 
Table 4-4 Test Head Bias Input Connector
GNDU:
Sub Mini-Triaxial Connector, Trompeter BJ152 Insulated Bulkhead 
Jack (150 Series)
SENSE:
Sub Mini-Triaxial Connector, Trompeter BJ152 Insulated Bulkhead 
Jack (150 Series)
FORCE:
Maximum Voltage: 
Damage Voltage: 
Ma
ximum Current:
Sub Mini-Triaxial Connector, T
rompeter BJ152 Insulated Bulkhead 
Jack (150 Series)
± 30 VDC (typical)
± 40 VDC
± 0.5 AMP