Zeroing And Calibrating Using Ttl Inputs; Figure 2-3 Rmt I/O Port Ttl Inputs; Table 2-2 Ttl Inputs Control Logic - Agilent Technologies E4419B User Manual

Zeroing and Calibrating Using TTL Inputs

You can use the TTL inputs on the rear panel Rmt I/O port to initiate zero and
calibration cycles on the power meter. The connector is an RJ-45 Series
shielded modular jack with the TTL input pins connected as shown in
Figure

Figure 2-3 Rmt I/O Port TTL Inputs

The TTL inputs are active low and control the zero and calibration functions
as shown in

Table 2-2 TTL Inputs Control Logic

E4419B Power Meter User's Guide
2-3.
1 2 3 4 5 6 7 8
Table 2-2
Input 1 Input 2
1 1
1 0
0 1
0 0
Pin Number Connection
1 none
2 Ground
3 Upper Window TTL Output
4 Lower Window TTL Output
5 TTL Input 1
6 TTL Input 2
7 Ground
8 Ground
Operation
None
CAL A
ZERO BOTH
CAL B
Power Meter Operation 2
37