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BI-39077 DATA LINK TO GTI UNITS
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DATA LINK TO GTI UNITS
The GTI Configurator must be able to communicate with one GTI unit in a system. If two or more GTI Configurator are
permitted to access a specific system, only one can have access at a time. Any changes made to the user database in this GTI
unit will also be made in the remaining GTI units via the PCM/Data bus. The GTI Configurator can communicate with a GTI
unit in a system in one or more of the following three ways (listed in order of increasing difficulty):
• Local RS-232 Link - Requires the following:
• Available serial COM port on GTI Configurator (PC)
• Interconnect cable (PC to GTI) no more than 50 feet long
• Remote RS-232 Link with Internal GTI Modem - Requires the following:
• Available serial COM port on GTI Configurator (PC)
• Interconnect cable (PC to modem)
• Hayes (or Hayes compatible) modem (1200 bps)
• Interconnect cable (modem to telephone line)
• Available telephone line (GTI Configurator (PC) end)
• Remote RS-232 Link with External GTI Modem - Requires the following:
• Available serial COM port on GTI Configurator (PC)
• Interconnect cable (PC to modem)
• Hayes (or Hayes compatible) modem (recommend 9600 bps)
• Interconnect cable (modem to telephone line)
• Available telephone line (GTI Configurator (PC) end)
• Available telephone line (GTI unit end - in addition to the normal telephone line going to the GTI unit for
interconnect calls)
• Interconnect cable (telephone line to external GTI modem)
• External GTI modem (recommend 9600 bps - must match modem at PC end)
• Interconnect cable (external GTI modem to GTI unit)
LOCAL DATA LINK
If the distance between the GTI unit and GTI Configurator is short, a cable (no longer than 50 feet) can be connected from the
RS-232 port on the rear panel of the GTI unit directly to a serial COM port on the GTI Configurator. This connection can be
used when the GTI Configurator is located with the system of GTI units or in a nearby office. To set up the local RS-232 link,
use the following procedure:
1. If the COM port on the GTI Configurator is a male DB-9 connector, connect it to the RS-232 port on the GTI unit,
as shown in Figure 23. If the COM port on the GTI Configurator is a male DB-25 connector, connect it to the RS-
232 port on the GTI unit, as shown in Figure 24. A 10-foot RS-232 cable with male and female DB-9 connectors is
supplied with the ELI option.