Velocity VDOT-SCM-SCI Instruction Manual page 4

4) After the module is brought into the active condition, reset the
module. It may be necessary to allow a short time to elapse before the
module is reset.
Confirm that the module goes back to the initial status after the
active status is reset. (In the normal status, no voltage is output
between S+ and S- (or between R+ and R-).
5) Short between terminal Lin+ (Lout+) and Lin- (Lout-), and the SCI
LED (yellow) is illuminated. The short circuit isolator isolates the
devices connected after the short-circuited area, which makes these
devices have no response. Upon removal of the short condition, the
area is automatically connected to go back to the normal standby
status, and the SCI LED (yellow) turns off.
FOR WARRANTY SERVICE, RETURN TO:
ZETA ALARMS LIMITED
72-78 MORFA ROAD, SWANSEA, SA1 2EN
http://www.zetaalarmsystems.com
Specifications
Applied Voltage
SLC Current Consumption
SLC Line Impedance
Relay（±I）
Number of NAC Circuits
NAC Circuit Rating
NAC Line Impedance
EOL Device
SCI on Resistance
SCI Fault Detection Threshold
SCI Isolation Current
Visual Indicator (Status LED)
Ambient Installation
Temperature
Storage Temperature
Max Relative Humidity
Environment
Maximum quantity per loop
Terminal
Address setting
Dimensions
Weight
Conformity
SLC Rated Range 20 to 38VDC
I± Rated Range 16 to 30VDC
Standby 0.8mA
Activated 3.6mA
Up to 50 ohms
Switching capacity
DC 30V/2A
1 x Class A or 1 x Class B
16 to 30VDC, 2A (max)
Up to 50 ohms
VDOT-RE-10k (10k ohms, 1/4W)
Class B only
0.2 ohms (max)
10V (min)
22mA (max)
Polling LED （GREEN）
Output LED （RED）
SCI LED （YELLOW）
0℃ to 49℃(32°F to 120°F)
-20℃ to 60℃(-4°F to 140°F)
Up to 93％ RH，non-condensing
Indoor dry use only
127 units
Screw AWG12 to 22
VDOT-AD2 Address Programmer
124mm H x 124mm W x 34.5mm D
(4.882'' H x 4.882'' W x 1.358'' D)
(Mount to a 4'' square by 2⅛'' deep
box)
Approximately 167g (5.9oz)
UL864
GLT-299-7-14 Rev.1
Jan 24, 2022
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