Motorola V.34-SDC manual NC Network Control Port Pinouts, Cabling, Cable Considerations, Pin Out

NC (Network Control) Port Pinouts

Table B-3describes the pinouts for the IN and OUT NC (Network Control) ports.

Table B-3.

Network Control Port Connector Pinouts

Pin	In	Out
1	Not Connected	User Special In
2	TXD In	TXD Out
3	RXD In	RXD Out
4	RTS In	RTS Out
5	Not Connected	Not Connected
6	Not Connected	User Special Out
7	Ground	Ground
8	DCD In	DCD Out

“In” signals use a DCE-type interface. This type of interface connects directly to the DTE-type interface provided by Motorola Network Management Systems.

“Out” signals use a DTE-type interface. This type of interface may connect to a Motorola network-managed product.

Cabling

This section provides important information about cabling and operating the modem at DTE rates greater than 19.2 kbps.

NOTE: 326XFAST and 326XFAST-SDC Series Modems are referred to as 326X

Series Modems here.

Caution

When operating the modem at DTE rates higher than 19.2 kbps, carefully follow the information here to determine the cables to use with your application. For the modem to operate as specified, Motorola has indicated the maximum capacitance of cables to be used when operating at data rates higher than

19.2kbps. If this method is not followed, your modem may cause errors in data transmission. Motorola makes no guaran- tee of proper modem operation if you do not use a cable with the correct capacitance.

Cable Considerations

Motorola has specified a maximum allowable cable capacitance for use with the expanded data rates of 326X modems. You must determine the correct capacitance of the cable you intend to use with the modem.

Pinouts Interface

Cabling and Interface Pinouts B-7