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Chapter 2 Installation Table 2- 6 V.35/DB25 DTE Port Pin Definition Pin Number 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Signal Source Cable Shield Transmit Data Receive Data Request To Send Clear To Send Data Set Ready Signal Ground Data Carrier Detect Receive Clock Return Unassigned External Clock Return Transmit Clock Return Unassigned Transmit Data Return Transmit Clock Receive Data Return Receive Clock Local Loopback Unassigned Data Terminal Ready Remote Loopback Unassigned Unassigned External Clock Test Mode DTE DCE DTE DCE DCE DCE DCE DTE DCE DTE DCE DCE DCE DTE DTE DTE DTE DCE -9-