Patton electronic 2701/B, 2701/D, 2701/C user manual Appendix D

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APPENDIX D

INTERFACE PIN ASSIGNMENT

X.21 Interface

(DB-15 Female Connector)

(DTE /DCE Conﬁguration)

Pin #	Signal

1	Frame Ground
2	T (Transmit Data-A)

3	C (Control-A)

4	R (Receive Data-A)

5	I (Indication-A)

6	S (Signal Element Timing-A)

7	BT (Byte Timing-A)

8	SGND (Signal Ground)

9	T/ (Transmit Data-B)

10	C/ (Control-B)

11	R/ (Receive Data-B)

12	I/ (Indication-B)

13	S/ (Signal Element Timing-B)

14	BT/ (Byte Timing-B)

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Contents User Manual Contents Page Warranty Information Radio and TV InterferenceCE Notice Tel +1 301 Email support@patton.com ServiceFeatures General InformationDescription DIP Switch Configuration ConfigurationSwitch SW1-1 through SW1-5 SW1 SW2 SW3 SW4 SW5Speed SW1-6 and SW1-7 Clock Modes SW1-6 SW1-7 Clock ModeSwitch SW2-1 Line Coding HDB3 default SW1-8 Enable/Disable Loop Tests from DTES1-8 Setting Position Function Factory Default Selected OptionSW2-3 Option Switch SW2-2 CRC-4 MultiframeSwitch SW2-3 Data Inversion SW2-2 OptionS2-4 RDL Type Switch SW2-4 Remote Digital Loopback TypeSwitch SW2-5 Front Panel Switches Switch SW2-6 V.54 Response Disabled defaultOpening the Case InstallationConnecting to the G.703 Network Connecting the Twisted Pair 120 ohm to the G.703 NetworkConnecting to a DTE Device Connecting the Serial PortConﬁguring the X.21 Interface 2701/D Connecting to a DCE DevicePower Connection Universal AC Power 100-240 VACTact Patton Electronics Technical support at DC PowerThere are no user-serviceable parts Power supply section of the Model 2701. ConTD & RD POWER-UPOperation LED Status MonitorsOperating Local Loopback LL Loop V.54 & Telco DiagnosticsRemote Loop in a Network Extension Application Operating Remote Digital Loopback RLCSU Loop Using the V.52 BER Test Pattern GeneratorNominal Impedance Network ConnectorAppendix a Network Data RateHumidity Power SupplyTemperature DimensionsAppendix B Page Appendix C Interface 34F Female Connector DCE Conﬁguration Pin # SignalPage Appendix D Patton Model # Description Appendix E