3 Peripheral Devices and Options 
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115
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Terminal ID Terminal Name Function description
Terminal 
Layout
CN5
A-AM
(NC 
contact)
B-AM
(NO 
contact)
Car fan and lamp 
control
Relay output terminal 
Contact drive capacity: 
250 VAC, 3 A or 30 VDC, 1 A
CN5
CN7/CN8
DB9-pin port for 
communication with 
the CCB
Connecting the CCB CN7 mainly 
used for front door and ordinary 
calls 
CN8 mainly used for back door and 
disability calls
CN7/CN8
CN10 RJ45 interface
Connecting the external LED 
keypad or LCD operation panel
CN10
J2
CTB address jumper 
in parallel control
Setting the CTB addresses: Short 
OFF or do not connect the terminal 
for a single elevator.
J2
CAN
CANbus 
communication 
indicator
This indicator blinks when 
communication between the CTB 
and the MCB is normal, 
and is steady 
on when a communication fault occurs.
RESET
CANbus 
communication fault 
indicator
This indicator blinks and the 
CANbus communication indicator 
is steady on when a fault occurs 
during communication between 
the CTB and the MCB
X1 to X8 DI indicator
This indicator is on (green) when 
the external input is active.
A1 to E1
Relay output 
indicator
This indicator is on (green) when 
the system output is active.
E1 D2 D1 C3
C1 B3
C2 B2
B1
A1
J9 Reserved
Factory reserved. Do not short 
it randomly. Otherwise, the 
controller may not work properly.
J9
 
◆
To prevent external interference on the communication, you are advised 
to use the shielded twisted pair as communication cables and lay them 
parallel.
 
◆
cables well.