Owner manual

Telebyte 209 Short Haul Modem
2305 Bering Drive 01850-001 Rev. G
San Jose, CA 95131 USA
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Web: www.kerisys.com E-mail: [e-mail] Page 4 of 5
Quick Start 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