EX-4 Tx1000 Keypad Expander Installation Manual Revision 1.0 March 1998
Page
5
2. INTRODUCTION
GENERAL
The EX-4 Keypad Expander is designed to allow a single Tx1000 keyboard to control up to four Tx1000 base
units. 64 Cameras can be selected and controlled when all four base units are connected.
The EX-4 is supplied in a 19" rack mountable enclosure.
EX-4 TECHNICAL SPECIFICATION
Power Requirements:
12V dc
Current Consumption:
<100mA @ 12V
Control functions:
•
Base unit selection using '
#
' and '
1
' - '
4
' keys
Features:
•
4 x RS232 Serial output to Tx1000 base units.
•
4 x Video Inputs from Tx1000 base units
•
1 x RS232 Serial Input from Tx1000 keypad.
•
1 x Video Output to Tx1000 keypad/monitor.
Engineering Facilities:
•
Powered from base unit 1.
•
LEDs indicating selected base unit and power present.
•
Standard DB9 connectors.
Video Input:
1v p-p 75
Ω
terminated input via BNC socket.
Video Output:
1v p-p 75
Ω
impedance via BNC socket.
Dimensions (external):
483 x 135 x 30mm. Metal case poweder coated RAL7035.
Weight:
1.0Kg
Temperature range:
-10° Celsius to +40° Celsius
