STS-12
STS Control Transfer Switch
1
2
Front:
READY
13
11
9
7
5
3
6
4
1
Back:
12
8
10
14
2
Front:
Back:
1. AC power switch
2. Ready indicator LED shows that system is operating
correctly
1-12. Serial communication ports. Port numbers are
assigned as labeled.
13. 120 VAC power chord.
14. Dual serial port card slot.
Description:
The TelemetricsModel STS-12 is a remote serial port switcher. The switcher uses a modular card system.Each unit can house
six cards. There are two serial ports per card, allowing up to 12 ports. Two types of cards are available, one is configured to
communicate with a control panel, the otherwith a serial receiver. The current transmission protocols are RS-232 and RS-422.
The STS Control Transfer Switch acts as a transparent communication path between the control panel and the receiver. The
switch allows multiple control panels to share multiple receivers. There are four functions available, switch port, switch port
(lock), switch port (unlock), lockout port, and unlock port.
Function
sw itc h port
sw itc h port (lock)
sw itc h port (unlock)
loc kout port
unlock port
De scription
sw itc h to port
sw itc h to port and lock connection
sw itc h to port and unlock connec tion
prevent port from communicating
enable port for communicating
Generally control panels will initiate a connection using the switch port commands. If the destination port is currently liked to
another port, the link will be broken. The link cannot be broken if it was established using the lock command. A control panel
can lockout another control panel using the lock port command. Upon a disconnect the disconnected portwill be notified.
Specifications:
Data Rate
9600 BPS , 8 bits, no parity, 1 stop bit
Number of Ports
12 bi-directional serial ports (6 cards max.)
Overall Dimensions
1 3/4 x 19 x 12 1/2 inches
Net Weight
9 lb.
Power
120 VAC, 15 watts
Options:
Description
Dual RS-232
Dual RS-232
Dual RS-422
Dual RS-422
In
Out
In
Out
Part Number
STSO-232IN
STSO-232OUT
STSO-422IN
STSO-422OUT
6/03 printed in U.S.A.
Eng #53626
Specifications and features subject to change without notice.
6 Leighton Place
Mahwah, New Jersey, U.S.A. 07430
Phone: (201)848-9818 Fax: (201)848-9819
www.telemetricsinc.com