Telebyte 209 Short Haul Modem
Unit 17 Park Farm Industrial Estate
01850-001 Rev. G
Buntingford, Herts SG9 9AZ UK
TEL: + 44 (0) 1763 273 243 FAX: + 44 (0) 1763 274 106
Web: www.kerisys.com E-mail: [email protected]
Page 4 of 4
Quick S
tart Guide
Short Haul Modem
2.4.2
Using a "Twist" Reduction Plug
If the reduction plug uses 2-3 twist wiring (pin 2 on the 25 pin side goes to pin 3 on the 9 pin
side and pin 3 on the 25 pin side goes to pin 2 on the 9 pin side) make the connection as shown
in Figure 4. Set the switch on the short haul modem to the DCE position by gently turning the
switch completely counter-clockwise.
Figure 5: Host Computer to Short Haul Modem Connection 2–3 Twisted Reduction Plug
2.5
Short Haul Modem to Short Haul Modem Wiring
Two sets of twisted pair cables are used to connect the short haul modems. Connect the cable
between the two modems as shown in Figure 5. The shield wire is not connected at either end of
the cable.
Figure 6: Short Haul Modem to Short Haul Modem Wiring Diagram
End of document.
