9
3.3 SELECTING THE DCE OUTPUT SIGNALS (CTS, DSR, OR CD)
Use Switches S1-3, S1-4, S1-5, S2-3, S2-4, and S2-5 to connect either
Clear to Send (CTS - pin 5), Data Set Ready (DSR - pin 6), or Carrier
Detect (CD - pin 8. In the “Isolated” setting, the selected signal passes
through Model 590A/591A isolated up to 2500VRMS.
Note
Switches S1-6, S1-7, S1-8, S2-6, S2-7, and S2-8 are
Reserved
for Future Use
.
Table 3:
Connect CTS signal (Pin 5)
Switch
Isolated Signal
Setting
S1-3
CTS
Off
S1-4
CTS
Off
S1-5
CTS
On
S2-3
CTS
Off
S2-4
CTS
Off
S2-5
CTS
On
Table 4:
Connect DSR signal (Pin 6)
Switch
Isolated Signal
Setting
S1-3
DSR
Off
S1-4
DSR
On
S1-5
DSR
Off
S2-3
DSR
Off
S2-4
DSR
On
S2-5
DSR
Off
Table 5:
Connect CD signal (Pin 8)
Switch
Isolated Signal
Setting
S1-3
CD
On
S1-4
CD
Off
S1-5
CD
Off
S2-3
CD
On
S2-4
CD
Off
S2-5
CD
Off
