Hardware reference guide

Equinox SST-4I/RJ Hardware Reference Guide 4
Device Cabling
Below and following on the next page (see figures 3, 4 and 5) are
three cable diagrams detailing how to build your own cables to go
between a SST-4I/RJ and your terminals, printers, PCs, modems, etc.
Figure 2 below shows the RJ-11 port orientation and pin-outs for the
SST-4I/RJ. Note that pin 3 acts as Data Terminal ready (DTR) when
connected to a modem (i.e. it will be dropped when the operating
system wants to disconnect the call). It will act as Request To Send
(RTS) when a device is directly connected and hardware flow control
is enabled.
Figure 2. SST-4I/RJ Port pin-outs
Figure 3. Cable pin-outs for SST-4I/RJ to Terminal
or Printer DB-25