Overview 1
N9342C/43C/44C User’s Guide 7
Top Panel Overview
Ext  Powe r 
Charging
PC
Ext  Trig/
RF Out  50 
Antenna
 
 
GPS
 
 
Probe 
 
Pow er 
 
Ext Ref
12-16
 VDC
 
55
 W MAX
RF Input 50 
   50 VDC M AX
   30dBm  (1W) M AX
50 VDC MAX
REV 
PWR
30dBm (1W ) M AX
LAN  
1
2
10
3
4
5
7
8
12
6
9
11
Items Function
1External DC power  
connector 
Provides input for the DC power source via an 
AC-DC adapter, or Automotive type DC adapter. 
2 LED indicator (Charging) Lights (On) when the battery is charging
3 LED indicator Lights (On) when external DC power is con-
nected.
4 USB interface (Device) Connects to a PC
5 USB interface (Host) Connects to a USB memory stick or disk
6 Headphone Connects to a headphone
7 LAN Interface Connects to a PC for SCPI remote control
8 RF OUT Connector The output for the built-in tracking generator. 
Enabled with Option TG7.
9 Probe power connnector Provides power for high- impedance AC probes 
or other accessories (+15 V, –12 V, 150 mA maxi-
mum).
10 EXT TRIG IN/REF IN  
(BNC, Female)
Connects to an external TTL signal or a 10 MHz 
reference signal. The TTL signal is used to  
trigger the analyzer’s internal sweep
11 GPS antenna connector Connects an GPS Antenna (option GPA) for GPS 
application.
12 RF IN Connector (50 Ω) Accepts an external singal input.