Zeroing And Calibrating Using Ttl Inputs; Figure 2-3 Rmt I/O Port Ttl Inputs; Table 2-2 Ttl Inputs Control Logic - Agilent Technologies E4418B 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 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

E4418B Power Meter User's Guide
Figure 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
ZERO
CAL
Power Meter Operation 2
35