Recent content by emptech

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    Unshielded CAT5 cable in EMT conduit outside?

    On a previous post I said cat5 was 24awg and cat6 was 25, that was a typo, but the actual circular mils difference is only slight. The customer supplied the cat5, I've never heard of water penetrating the outer jacket, but it somehow happened. I will do as you suggested, I'll let them know if...
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    Unshielded CAT5 cable in EMT conduit outside?

    It was mentioned that if I had used the proper cable to begin with, wouldn't have had the problem. According to the specs, the normal wire gage for cat5 is 24awg. For cat6 it's 25awg. Looking at the copper wire table, it takes about three wire gages difference to double the circular mils...
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    Unshielded CAT5 cable in EMT conduit outside?

    The EMT conduit is on the roof of a building, not underground, but neverless, there was water in the conduit. There were two cat5 cables in the same conduit, so far only one cable had problems, one would think both would have problems, but given more time, it may repeat itself. If there is a...
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    Unshielded CAT5 cable in EMT conduit outside?

    I installed a system a while back where about 100 feet of cat5 cable had to be outside in the weather and in direct sunlight. I ran the cable in EMT, 1/2" metallic conduit, not waterproof. I know that unless one is using PVC conduit, glued together, the conduit will not be waterproof. A few...
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    Alibi camera video no longer appears on preview screen but when clicked to full screen live video, shows up, why?

    From what I know, it's all about bandwidth. I've read that mainstream is 2048bps and substream is 512bps. For that camera, I'll have to find that setting. I'm not accusing the manager of hitting the wrong key, but it happens. I finally got an email back from Alibi directing me to the...
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    Alibi camera video no longer appears on preview screen but when clicked to full screen live video, shows up, why?

    That occurred to me, when I get back to the customer, I'll check it. In answering your question I'm assuming that the live screen is main stream. One thing that bothers me, the manager logs in as admin, which gives her lots of power, can make changes without knowing it. She should create a...
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    Alibi camera video no longer appears on preview screen but when clicked to full screen live video, shows up, why?

    Working on a customer's Alibi NVR5016P. Original complaint one of the outdoor cameras no longer worked. In a 200 foot run outside in metallic conduit I found some opens in the CAT5 cable. The opens were 86 feet from the camera, right in the middle of a 1/2" EMT conduit. Removing the bad...
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    Sony IPELA SNC PTZ failures

    I'm working on a system with some older Sony IPELA SNC-RZ50N IP cams. The PTZ mechanism fails. The mechanism does not freeze or lock up but there is no longer electronic control. I've seen lots of these fail, has anybody troubleshot them to find if there is a common cause? Like power...