GW Instek GFG-3015 - Manual (Page 19)

GFG-3015 p.15
15 Trigger Function LEDs : These LEDs indicate the current status of trigger function on
display and the current operation functions.
The MULT LED lights on to indicate the trigger setting status
of multi-trigger type.
The SINGL LED lights on to indicate the trigger setting status
of Single-trigger type.
The EXT LED lights on to indicate the external trigger signal
source.
The ON/OFF LED lights on to indicate that the trigger function
is enabled.
16 Shift mode LED : The SHIFT LED light on indicated that the enter mode is
Secondary Functions right now.
17 Hold mode LED : The HOLD LED lights on to indicate that all modify keys is
disabled.
18 RS-232 Interface LED : The RS232 LED indicates the current operation status with
the RS-232 interface bus.
19 Main Output BNC : This is the BNC connector that outputs all main signals.
Output resistance is 50Ω.
20 Sync Output BNC : This is the BNC connector that outputs sync signals. Output
resistance is 50Ω.
21 TTL Output BNC : This is the BNC connector that outputs TTL level signals.
22 GCV Output BNC : This is the BNC connector that outputs the voltage between
0.2V and 2V varied with different Frequency
23 Modulation/Sweep
Output BNC : This is the BNC connector that outputs internal Sweep or
modulation signals. Output
Impedance is 10kΩ.
24 EXT Modulation/Trigger
Input BNC : This is the BNC connector for EXT amplitude/frequency
modulation or EXT sweep signal input.
The amplitude modulation index is 100% when ≤10Vpp is
input.
The frequency modulation index is 15% when ≤5Vpp is input.
The trigger mode input signal is compatible with TTL level.
25 VCF Input BNC : This is the BNC connector for VCF signal input.
The frequency variation width index is 100:1 when
10V± 1V
is input. Input Impedance is 10kΩ.
26 EXT Counter Input BNC : This is the BNC connector for external counter signal input.
The Input
Impedance is 1MΩ // 150pF