Sentry Industries PT22 ユーザーズマニュアル

The PT22 is equipped with an RJ45 Serial RS-232 port for attachment to a PC or networked terminal 
server using the supplied RJ45 to RJ45 crossover cable and RJ45 to DB9F serial port adapter as 
required.  See Power Ratings in Appendix C: Technical Specifications for more information on the 
Serial RS-232 port. 

The PT22 is equipped with an RJ45 10/100Base-T Ethernet port for attachment to an existing network.  
This connection allows access to the Switched PT22 via Telnet or HTML. 

The PT22 is configured with the following network defaults to allow unit configuration out-of-the-box 
through either Telnet or HTML: 

•  IP address:  

192.168.1.254 

•  Subnet Mask:  

255.255.255.0 

•  Gateway:  

192.168.1.1 

The local PC network connection must be configured as noted below: 

NOTE: Contact your system administrator for instructions in reconfiguring the network connection.  Reconfiguration of 
your network connection may require a restart to take effect. 

•  IP address:  

192.168.1.x (where x is 2-253) 

•  Subnet Mask: 

255.255.255.0 

The PT22 is equipped with a DB9 male Modem serial port for connection to an external modem using 
the supplied DB9 female to DB25 male serial cable.  See Power Ratings in Appendix C: Technical 
Specifications more information on the Modem port. 

8 

•   Installation 

Sentry PT22 

 

 

 

Installation and Operations Manual