Remote Port Security Device
User’s Guide
555-024-402
Issue 1
October 1996
Introduction
Page 1-7
Hardware Components
1
In the event of a unit failure or a power failure, the RPSD blocks incoming and
outgoing calls to the port, protecting the port against unauthorized access. This
call blocking also prevents the communications system or other protected
resources from originating an alarm and blocks dial-up access to the port.
However, you can push in the POWER MONITOR button on the back of the Lock
to enable the Power Monitor function. The green LED lights to indicate that the
Power Monitor function is enabled. When this function is enabled, the TELCO and
SUBSCRIBER ports are connected during a power failure, thereby bypassing the
Lock security. This bypassing permits incoming calls to the communications
system or other host resource.
!
Security Alert:
When the POWER MONITOR button is IN during a unit or power failure, the
security of the RPSD Lock is bypassed. Leave the button in the OUT
position for security reasons.
External Alarm
You can connect alarm leads to the screw terminals on the back of the Lock.
When a Lock failure occurs, contacts inside the Lock close and send a signal out
the alarm terminals to the communications system or other external alarm.
You can also use the Power Monitor function to generate a signal failure through
the alarm leads without bypassing the RPSD and compromising security. This is
called an
Alarm Only installation.
RPSD Key
The RPSD Key is similar to the RPSD Lock in size and appearance. When you
order the RPSD Key, you receive:
■
The Key
■
Power supply
■
7-foot line cord with RJ11 modular connectors on each end
■
14-foot line cord with RJ11 modular connectors on each end
■
DB9 (male) to DB25 (female) cable
Like the RPSD Lock, the RPSD Key has LEDs on the front panel and ports on the
back panel. For a detailed description of the front panel LEDs, see Appendix B,
“Front Panel LEDs.” The back panel ports are (see Figure 1-4):
■
RJ11 port for the central office line, labeled TELCO
■
RJ11 port for the modem connection, labeled SUBSCRIBER
■
Female DB9 port for the terminal or printer, labeled AUX. PORT
■
Port for the power supply (supplied with the RPSD Key).
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