Bay Technical Associates 5218H, 528H, 529H, 525H owner manual Solutions

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Please check this troubleshooting guide before calling BayTech Technical Support.

PROBLEM: CANNOT CONFIGURE H-SERIES MULTIPORT

SYMPTOM: CONTROL-T (OR CURRENT CONTROL CHARACTER) FOLLOWED BY CAPITAL C SENT IN DUMB TERMINAL MODE DOES NOT INVOKE CONFIGURATION MENUS.

CAUSE: Host serial cable.

SOLUTIONS:

1)Check cabling between host device and H- Series multiport. If the host device is a PC, you may check the cable using the TERM program. With TERM loaded on the appropriate com port, all handshaking lines should be high (except possibly DCD which is not used). If the CTS or DSR lines are not high, compare the pinout of your cable with the pinout shown in Figure 1 on Page 10. If lines are high, power down the multiport. You should notice the CTS and DSR lines go low. If they do not, there is a good chance the cable is not correct.

2)Check the installation procedures for host computer's serial port. COM1 must generate an interrupt on IRQ4 (COM2 on IRQ3). Also, check any jumpers for defining port configuration which should be jumpered for DTE, not DCE.

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Contents Series Multiport Controllers Page Copyright 1993 by Bay Technical Associates, Inc Table of Contents Federal Communications Commission Radio Frequency Page Page Below shows six applications, one for each mode of operation Factory POWER-UP Default Configurations USER-PROGRAMMABLE ConfigurationsUL and CSA Listed Page Page Page DCE Port Signals 500H Series DCE to DTE Device Page Factory default is Carriage Return 0D Hex Page Page Page Page Page Page Page Page Host-to-multiport-to-peripheral communication Peripheral-to-multiport-to-host communication Host-to-multiport-to-peripheral communication Peripheral-to-multiport-to-host communication Page Operation Protocol Enter Port Number 0=Exit,Return For 110 135 300 600 1200 2400 4800 9600 Enter request 0AH Section Control Mode of Operation Main Menu SET Message Terminate Character TITC22*233343526Y130A4250*51466X Page Page Page Solutions Problem Garbage Data Symptom Missing Characters Symptom Random Garbage Characters Problem Cant Select Peripheral Port from Host Device Problem Cant Receive Data from Peripheral Ports Ccitt DOS Page Page Page Uart Other Baytech Products Page Page Series Multiport Controllers Page
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