Black Box network services - Manuals

PSD-4 AND PSD-8 6 3. Installation 3.1 Choosing a Site • The PSD must be installed within five feet (1.5 m) of a grounded AC outlet. • The PSD must be within 50 feet (15 m) of the equipment that will be attached to the main channel and each sub-channel. • Allow 36 inches (91 cm) frontal clearance for...

CHAPTER 3: Installation 7 Table 1. Printed Circuit-Board Switch and Strap Settings Possible Factory Stap Identity Location Settings Setting Function MAIN DCE/DTE switch DTE DTE Determines the PSD’s Main Channel DCE interface as either DTE (straight connection to a modem) or as DCE (straight connecti...

CHAPTER 4: Operation and Troubleshooting 11 4. Operation and Troubleshooting 4.1 Operation Turn on the rear-panel POWER rocker switch. The front-panel POWER LED will light. The PSD operates automatically. Except for manually disabling a sub-channel, you will not needto attend to the PSD. 4.2 Changin...

CHAPTER 5: Technical Guide 13 5. Technical Guide 5.1 Control Signals M AIN C HANNEL C ONTROL S IGNALS RTS (DCD) • In RTS/DCD contention mode: follows RTS (DCD) of the selected sub-channels. • In Data Contention mode: ON if one of the sub-channels RTS (DCD) is ON. CTS On only when the CTS signals of ...

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