The standard Model 24SII DES requires 115 VAC, 50/60 Hz. power and comes with a three-prong power cord. Do not attempt to operate the unit with a two-prong socket or adaptor. 230 VAC, 50/60 Hz. is optional.
The Model 24SII DES powers-up when you press the power switch, located on the front of the unit, to "ON". A green LED on the front panel will illuminate when power is applied.
CAUTION: Power should be turned off anytime cables are to be installed or removed. Make sure the power is turned off and the unit is unplugged before removing the cover and attempting to make any internal changes.
Before you proceed with cabling, determine which type of I/O modules you have installed on the Model 24SII. The module type is marked on the top of the module panel. Parallel ports have DB-25 female connectors. Serial ports have either DB-25 male DTE, DB-25 female DCE, or RJ-45 modular connectors. Next, determine what device will be connected to each available port, whether the device will be connected to a serial or parallel port, and whether the device will connect to a computer port or printer port. Finally, you should obtain the correct cables to connect your equipment to the Model 24SII.
NOTE: Any port (except Port 1 of Module 1) may be designated as a computer port or a printer port. However, if computer-to-computer communication will be required, the computers that will be communicating must both be connected to serial ports to allow full duplex communication. Printers and plotters are connected via cable to user-assigned printer ports on the Model 24SII DES. Computers and modems are connected via cable to user-assigned computer ports.
NOTE: If you are interfacing your equipment to the M24SII-V07 I/O module, determine if you will use 4-wire or 8-wire cabling.
Refer to Section 5 and Appendix A to ensure you have all the correct cables to fully connect your system.