Crestron st-com 用户手册

Crestron ST-COM 

 

RS-232/422/485 COM Module

A number of ports are provided on the back of the ST-COM. Each has a silk-
screened label. Refer to illustration and descriptions below.  

 

This direct current (DC) power socket connector is used to supply power via the 
external power pack, when attached. If the power pack is used while 24 VDC is 
present on the NET connector, the power pack supplies power to the unit (no current 
is drawn from the network).  

Crestron recommends specific power packs for its devices. The acceptable power 
pack for the ST-COM is Crestron part number PW-1205 (PWI-1210 for the 
international version, STI-COM). If a power pack other than this Crestron model is 
obtained, verify that it meets the required specifications and polarity as shown 
below.  

PW-1205

120V~60Hz

12VDC  .5 A

PWI-1210

230V~50Hz

12VDC  1A

 

 

These two 6-pin, 6-position RJ11 modular jacks are used to connect the ST-COM 
module to either the SmarTouch STS or Cresnet remote control system. When the 
module is part of the Cresnet system, power is provided via the NET connection; the 
power pack need not be attached. Two NET ports are available so that network units 
can be daisy-chained together. Review the latest revision of the Network Modular 
Cable Requirements (Doc. 5682).  

NOTE:  Most 4-conductor phone cables are wired in a crisscross fashion and are not 
compatible with Crestron equipment.  

NOTE:  The ST-CP does not supply network power. Therefore, use the power pack 
to supply power to the ST-COM.  

If a power pack is attached when the module is part of the Cresnet system, power is 
drawn from the power pack. The module does not load the network power, but the 
network remains chained for additional network devices that are connected.  

•  3