Dynalco SST-2400H Speed Switch/Transmitter - Manual (Page 13)

Connecting Signal Inputs
Connecting a PG-278 Pulser
Connect signal source Common to terminal 6 on the SST-2000A/H. Connect
signal HI to terminals on the SST-2000A/H.
Terminals 11 and 30 on the SST-2000A/H are jumpered to create a one volt
threshold.
11
Installing the SST-2000A/H
Fig. 2-2 Connecting a
PG-278 Pulser to the
SST-2000A/H.