Installation guide
TX1500 Manual V5.1 April 2014 Page 6 of 36 TX1500 MATRIX
4 = TxA from MONITOR CARD (data +)TxB from MONITOR CARD (data -) = 5
(0v) GROUND= 7
DO NOT USED = 8
BLUE (CAT5)(CAT5) WHITE/BLUE
(CAT5) WHITE/BROWN
(CAT5) BROWN
GREEN RED
YELLOW BLACK
ORANGE
BLUEWHITE
BROWN
RxB to MONITOR CARD (data -) = 6
(CAT5) GREEN
3 = RxA to MONITOR CARD (data +)
WHITE/GREEN (CAT5)
2 = DO NOT USE (+V)
1 = DO NOT USE
BBUS CONTROL BUS
The TX1500 communicates with all Keyboards, alarm cards and BBUS-IF interfaces via a polled 4 wire multidrop
RS422 control bus named BBUS.
All the units are equipped with standard RJ45 connectors allowing cat 5 patch cables to be used to connect over
short distances. On the larger sites RJ45 break out boxes are used to link between cat 5 cables and good quality
screen twin twisted pair data cable. Suitable types are the following Belden cables: 9842, 9829, 8162, 8132.
Fig 5. BBUS - RJ45 breakout box connector, MONITOR CARD end of BBus.
BBUS maximum distance 1200m end to end
GREEN RED
YELLOW BLACK
ORANGE
BLUEWHITE
BROWN
GREEN RED
YELLOW BLACK
ORANGE
BLUEWHITE
BROWN
GREEN RED
YELLOW BLACK
ORANGE
BLUEWHITE
BROWN
BLUE/WHITE
GREEN/WHITE
BLUE
GREEN
Tx Data (From matrix)
Rx Data (To matrix)
SCREEN
SCREEN
SCREEN
TX1500/AL16
Keypad 2
BBUS Terminated
RJ45 patch cable max length = 2m
Alarm card
BBUS Un-Terminated
Switch 7-8 OFF
Keypad 1
BBUS Un-Terminated
TX1500/32/8
9-12Vdc
PSU
9-12Vdc
PSU
9-12Vdc
PSU
9-12Vdc
PSU
Card alarm 1 - 16
1 2 3 4 5 6 7 8
ON
Fig 6. Keyboard BBUS wiring