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GuestWorks and DEFINITY ECS Release 9
Technician Handbook for Hospitality Installations
555-231-743
Issue 1
November 2000
Installing the System
54Connecting the Hospitality Adjuncts
Switch-to-PMS Link
This connection is used to transfer the normal hospitality information, such as
names registration, check-in, check-out, and so on, between the switch and the
PMS.
Parts List
■ One digital communications protocol (DCP) port on the switch; the 8400B
data module uses a TN2214 or TN2224 2-wire digital port, and the 7400A
and 7400B data modules use a TN754C 4-wire digital port.
■ Standard cross-connect hardware
■ One D8W modular cord
■ One 8400B data module optioned as shown on page 56, a 7400A DCP
data module optioned as shown in Table 5 on Page 57, or a 7400B DCP
data module optioned as shown on page 58
■ One DB9-to-DB25 transition cable when using the 8400B data module
■ One M25A or M25B cable (or equivalent 25-pin straight-through cable);
see “Appendix A — Parts List” on page 242.
Distance Limits
The distance limit when connecting a data module to a TN2214 or TN2224 with 24
AWG wire is 3500 feet (1067 meters). The distance limit when connecting a data
module to a TN754C is 5000 feet (1524 meters) with 24 AWG wire, and 4000 feet
(1219 meters) with 26 AWG wire.