Imagine NEO DVR-3901, Инструкция по установке и эксплуатации

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18 DVR-3901 Installation and Operation Manual
Chapter 2: Installation and Removal
Terminating LTC Output Port (+) Termination
Follow this procedure to set the J8 jumper for either Low-Z or 600
Ω
series impedance for the LTC output port (+):
1. Locate jumper
J8 on the module. See Figure 2-3 on page 16 .
2. Place a jumper on pins 1 and 2 to set the module for
Low-Z
selection, or pins 2 and 3 to set the module for 600
Ω
selection.
See Figure 2-6 below.
Figure 2-6. The J8 Settings for Low -Z and 600
Ω
selection
LTC Output Port (-) Termination
Follow this procedure to set the J9 jumper for either Low-Z or 600
Ω
series impedance for the LTC output port (-):
1. Locate jumper
J9 on the module. See Figure 2-3 on page 16 .
2. Place a jumper on pins 1 and 2 to set the module for
Low-Z
selection, or pins 2 and 3 to set the module for 600
Ω
selection.
See Figure 2-7 below.
Figure 2-7. The J9 Settings for Low-Z and 600
Ω
selection
Note
The white triangle on the
module near the jumper pins
indicates pin 1.
Low-Z selection setting 600
Ω
selection setting
1 2 3 1 2 3
Note
The white triangle on the
module near the jumper pins
indicates pin 1.
Low-Z selection setting 600
Ω
selection setting
1 2 3 1 2 3