0049-1800-xxx 326X V.34, V.34-SDC and V.32bis Series Modem – USER’S GUIDE 02/23/2010
Rev. A
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APPENDIX B – Cabling and Interface Pinouts
Introduction
This appendix describes the following:
•
Interface pinouts common to all modem models, including:
o
EIA/TIA 232-D, and ITU V.35 Recommendation modem-to-computer interfaces
o
NC IN and OUT network control port interfaces
•
326X/326X-SDC cabling requirements and diagnostics
Audio connector (DIAL LINE, LEASE/PRIVATE LINE, and PHONE) pinouts vary by country. See
Appendix C for your country’s pinouts.
EIA/TIA 232-D (MODEM TO COMPUTER) INTERFACE
The modem’s digital interface conforms to the EIA/TIA 232-D standard and ITU V.24, ITU V.28, and ISO
2110; the modem should be connected to a data terminal with a compatible digital interface (Table B-1).
NOTE
: For DTE rates greater than 38.4 kbps, refer to the “Cabling” section to determine cables and lengths.