HP 24SII manual # #$

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IMPORTANT: Before you proceed with cabling, you must know whether the devices to which you will connect the Model 24SII DES are DTE (Data Terminal Equipment) or DCE (Data Communication Equipment). The following devices are generally DTE: terminals, printers, computers like the IBM PC. The following devices are DCE: modems and some computers.

The M24SII-V05 and M24SII-V06A I/O modules have RJ-45 modular connectors. Most serial computers, modems, and printers do not have RJ-45 modular connectors. Therefore, adapters are required to convert from either DB-25 or DE-9 connectors to modular connectors. BayTech has a complete line of RJ-45 adapters and cables that will make your installation quick and trouble free. Please see Appendix A.5 for adapter pin outs as well as recommended cabling.

The M24SII-V05 and M24SII-V06A I/O modules use the following signals for communication:

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RJ-45 PIN-OUT INFORMATION

PIN	SIGNAL	DIRECTION	DESCRIPTION
	EIA-232
1	DTR	Output	Handshake Out, enable/disable the receiving of
			characters
2	GND	----	Signal Ground
3	RTS	Output	Handshake Out, Normally +10V
4	TX	Output	Transmit Data
5	RX	Input	Receive Data
6	DSR	Input	Handshake In, not used
7	GND	----	Signal Ground
8	CTS	Input	Handshake In, enable/disable the transmission of
			characters