264
The audio output signal parameter is usually over
200mv 1KΩ (BNC). It can directly
connect to low impedance earphone, active sound box or amplifier-drive audio output
device.
If the sound box and the pick-up cannot be separated spatially, it is easy to arouse
squeaking. In this case you can adopt the following measures:
Use better sound pick-up with better directing property.
Reduce the volume of the sound box.
Using more sound-absorbing materials in decoration can reduce voice echo and
improve acoustics environment.
Adjust the layout to reduce happening of the squeaking.
3.7
Alarm Input and Output Connection
Please read the followings before connecting.
1. Alarm input
a. Please make sure alarm input mode is grounding alarm input.
b. Grounding signal is needed for alarm input.
c. Alarm input needs the low level voltage signal.
d. Alarm input mode can be either NC (normal Open) or NO (Normal Close)
e. When you are connecting two DVRs or you are connecting one DVR and one other
device, please use a relay to separate them,
2. Alarm output
The alarm output port should not be connected to high power load directly (It shall be less
than 1A) to avoid high current which may result in relay damage. Please use the co
contactor to realize the connection between the alarm output port and the load.
3. How to connect PTZ decoder
a. Ensure the decoder has the same grounding with DVR, otherwise you may not control
the PTZ. Shielded twisted wire is recommended and the shielded layer is used to connect
to the grounding.
b. Avoid high voltage. Ensure proper wiring and some thunder protection measures.
c. For too long signal wires, 120Ω should be parallel connected between A, B lines on the
far end to reduce reflection and guarantee the signal quality.
d.
“485 A, B” of DVR cannot parallel connect with “485 port” of other device.
e. The voltage between of A,B lines of the decoder should be less than 5v.
4. Please make sure the front-end device has soundly earthed.
Improper grounding may result in chip damage.
3.7.1 Alarm Input and Output Details
Important
Please refer to the specifications for the alarm input and output channel amount.
Содержание PENDVR-EL16M4K
Страница 1: ...PENDVR EL16M4K ELITE SERIES...
Страница 20: ...247 2 3 Connection Sample...
Страница 128: ...363 restore original status Figure 4 115 Figure 4 116 4 9 1 3 1Upgrade Camera...
Страница 151: ...386 Figure 4 137 Figure 4 138...
Страница 158: ...393 Figure 4 145 Step 2 Draw tripwire 1 Click Draw button to draw the tripwire See Figure 4 146 Figure 4 146...
Страница 162: ...397 Figure 4 149 Step 2 Draw the zone 1 Click draw button to draw the zone See Figure 4 150 Figure 4 150...
Страница 164: ...399 Figure 4 151 Step 2 Draw the zone 1 Click draw button to draw the zone See Figure 4 152 Figure 4 152...
Страница 166: ...401 Figure 4 153 Step 2 Draw the zone 1 Click Draw button to draw a zone See Figure 4 154...
Страница 172: ...407 Figure 4 157 Figure 4 158...
Страница 173: ...408 Figure 4 159 Figure 4 160...
Страница 174: ...409 Figure 4 161 Figure 4 162...
Страница 177: ...412 Figure 4 165 Figure 4 166...
Страница 178: ...413 Figure 4 167 Figure 4 168...
Страница 184: ...419 Figure 4 177 Figure 4 178 4 9 4 1 2 2 Trigger Snapshot...
Страница 186: ...421 Figure 4 180 Figure 4 181 4 9 4 1 2 3 Priority...
Страница 192: ...427 Figure 4 186 Figure 4 187...
Страница 197: ...432 Figure 4 193 Figure 4 194...
Страница 210: ...445 Figure 4 209 For digital channel the interface is shown as below See Figure 4 210 Figure 4 210...
Страница 217: ...452 Figure 4 218 Step 2 Click Add user button in Figure 4 218 The interface is shown as in Figure 4 219 Figure 4 219...
Страница 283: ...518 Figure 5 69 Figure 5 70...
Страница 299: ...534 device Figure 5 86 Figure 5 87...
Страница 305: ...540 Figure 5 94 Figure 5 95...
Страница 306: ...541 Figure 5 96 Figure 5 97 Please refer to the following sheet for detailed information...
Страница 310: ...545 Figure 5 101 Figure 5 102 Figure 5 103 Please refer to the following sheet for detailed information...
Страница 333: ...568 Figure 5 136 Note For admin you can change the email information See Figure 5 137...
Страница 363: ...598 448K 196M 512K 225M 640K 281M 768K 337M 896K 393M 1024K 450M 1280K 562M 1536K 675M 1792K 787M 2048K 900M...
