6 Digital Monitoring Products, Inc. | Troubleshooting Guide
RESISTOR VALUES
DMP panels use resistors of dierent values to control dierent system voltages, such as zone voltages and bell
supervision voltages�
RESISTOR VALUES USED WITH DMP EQUIPMENT
1,000 Ohm Panel zones 1-8, 711 & 714 zone expanders, DMP keypad zones
3,300 Ohm Panel zone 9 (XT30/XT50), panel zone 9 & 10 (XR), all Model 715 zone expanders
10,000 Ohm 866 & 867 Bell Supervision
470k Ohm 1103 & 1114 Wireless Transmitters
2M Ohm 1115 with External Water Probe
HOW TO DETERMINE RESISTOR VALUE
Resistor values can be determined by the color code on the resistor� With the Gold or Silver band positioned to the right,
look at the other color-bands from left to right�
The first color-band on the left determines the first number of the resistor’s value and the second color-band determines
the second number of the resistor’s value�
The third color-band tells us how many zeros to put behind the first two numbers�
The last band (either Gold or Silver) represents the resistor’s tolerance, meaning that the actual resistance can vary
above or below the value indicated by the color code�
Note: The resistor shown above has: Brown (= 1), Black (= 0), Red (= 2), and Gold (± 5%)� So this resistor
has a value of 1,000 Ohms�
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