RS-232-C connection to SYSTEM 500M/1000M
Connect the RS-232-C cable to socket 1-13 (refer to figure 1).
SYSTEM 500M/1000M Keyboard Series 1500
Pin Description Pin Description
3 Transmit 2 Receive
2 Receive 3 Transmit
1, 4 or 5 Ground (To cable screen also) 1, 4 or 5 Ground (To cable screen also)
Maximum cable length is 50 metres.
The RS-232 port on the 1502M or 1503M keyboard can also be used for connection to a serial
printer for alarm logging, if the keyboard is connected to the SYSTEM 1000M via the ARC-net.
To use the feature the SYSTEM 1000M must be set-up accordingly, refer to the SYSTEM
1000M Programming Manual.
Also telemetry receivers can be controlled via the RS-232 port. The Transmit signal should be
connected to the positive terminal on the telemetry receiver and the GND signal to the
negative terminal, except on the Series BDR-550 where the signals must be reversed.
Keyboard Set-up
When using external keyboard(s) in an matrix installation, it is important to check the factory
programmed default settings for the keyboards before use to avoid conflict or dead-lock
situations like several keyboards having the same address.
When used as a matrix keyboard, make sure the following parameters are set correct:
Keyboard type=SysKbd / System keyboard.
Communication media: In accordance with the interface used.
Baud rate: In accordance with baud rate set in SYSTEM 500M/1000M.
Keyboard address: Make sure the address set is unique.
When used for direct control of telemetry receivers/ICU's:
Keyboard type=CamCrtl / Direct camera control.
Communication media=RS-485.
Beeper
During set-up mode the key-beep sound is changed to indicate you are in set-up.
Various different beeps indicates valid or invalid selections.
Keyboards 1500M and 1501M will indicate wrong entries during set-up by no key-beep at all
and will await a valid selection - set-up is not left until a valid selection has been made.
Operation of AUX relays
Set-up allow three different operation methods:
Latched, or toggled function.
Un-latched, or momentary, push-button, function.
1801M emulation, must be selected when the keyboard is connected to SYSTEM
500M/1000M software version 2.1 or lower.
Might also be selected when used with newer matrix software; in this case is the
functionality of the AUX-relays, latched or un-latched, controlled by the matrix
set-up individually for each camera.
Installation and Setup instruction for Keyboard Series 1500
Page 5
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