And V.35 Connectors: Dte Data Connection/Primary Dte; Control Port - ADTRAN DSU IV ESP User Manual

Chapter 3. Operation
EIA-232 and V.35 Connectors: DTE Data Connection/
Primary DTE
The primary DTE should be connected to either the EIA-232 DTE
connector or the V.35 DTE connector. The maximum cable lengths
recommended are 50 feet for the EIA-232, and 100 feet for the V.35.
The pin assignments for the connectors are listed in Pinouts on page
A-1.
The V.35 connector is recommended for use with data rates above
19.2 kbps. The EIA-232 connector works up to 56 kbps with a low
capacitance cable or with the external transmit clock option
selected. The primary DTE rate is configured from the front panel.
The primary DTE equipment can operate in asynchronous or
synchronous modes.
To prevent possible radio frequency interference emissions, a shielded ca-
ble is required.

Control Port

The DSU IV ESP has an 8-position modular jack labeled C
The control port provides connection to a VT 100 EIA-232
compatible interface, a device running SLIP protocol, or a device
running Async PPP protocol. An 8-foot adapter cable and
connector provide a standard DB-25 EIA-232 interface.
See Appendix A, Pinouts on page A-1 for the control port's pin
assignments.
The control port also functions as the SLIP or Async PPP port when
configured for SNMP management. The pinouts are identical when
operating in an SNMP management mode.
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