MJ-4 Communications Module 
  23 
1  Lower Voltage Limit 
2  Local Voltage Reduction % 
3 VRC Stage1 
4 VRC Stage2 
5 VRC Stage3 
6  Auto VRC1 %I 
7  Auto VRC2 %I 
8  Auto VRC set1 
9  Auto VRC set2 
10  Rev Bandwidth Setting 
11  Rev Reactive Compensation 
12  Rev Resistive Compensation 
13  Rev Voltage Level 
14  Rev Time Delay 
15  Fwd Bandwidth Setting 
16  Fwd Reactive Compensation 
17  Fwd Resistive Compensation 
18  Fwd Voltage Level 
19  Fwd Time Delay 
20  Voltage Limit Control Enable 
21  Voltage Reduction Control Mode 
22 Log Setup 
23  Alert Status part 1 
24  Alert Status part 2 
 
8.2.4  Small 2.x3 
Binary Inputs 
Point #  Description 
0  Tap Pos Known 
1  Power Flow Direction 
2  Auto Inhibit Status 
3  Raise (J) Motor Signal 
4  Lower (K) Motor Signal 
5  Remote Control occurring 
6  U2/P2 Switch Position 
7  Neutral (U12) Signal 
8  Operations Count (U10) Signal 
9  Auto Inhibit Terminal Block Input 
10 VRC1 contacts 
11 VRC2 contacts 
12  Remote Switch position 
13  Manual Switch position 
14  Auto Inhibit Out Status 
 
Binary Outputs 
Point #  Description 
0 Tap Raise 
1 Tap Lower 
2  Auto Inhibit (Latch On/Off) 
 
Analog Inputs 
Point #  Description 
0  Op Count Last Year 
1 N/A 
2  R/A/M switch position 
3  Power Flow Direction Indicator 
4  VRC contacts status