OEM 제품은 대부분 장납기(통상 2주) 제품입니다.
The OEM version of the T7 and T7-Pro are shown below. The enclosure, and most connectors are not installed on the OEM version, which allows customers to choose custom connectors.
The following list describes parts that we know to be compatible with the T7 OEM hole patterns. Simply select a connector from each category, and we can order the parts and construct a custom OEM. Custom OEM boards carry additional cost, but they are often necessary for specialized enclosures, and seamless integration with other products.
Of course there are many other connector options available; we can just as easily order/install something not mentioned below. Please don't hesitate to contact us.
The PCB Dimensions can be found in the Enclosure and PCB Drawings section.
Note: Proper ESD precautions should be taken when handling the PCB directly. Many of the parts are ESD resistant, but depending on the size of the shock, or location, the board might be damaged.
USB
The USB connector is not installed on the T7 OEM. Reference the T7 PCB dimensions for mechanical mating details. Many through-hole Type-B USB connectors are compatible. On Shore Technology Inc USB-B1HSW6, FCI 61729-0010BLF, and TE Connectivity 292304-2 are all good options. The USB connector must be installed on the component side of the PCB.
A special high-retention connector such as the Samtec USBR-B-S-S-O-TH can also be used, but it does take a good deal of force to unplug a cable from these so they are only recommended when you don't want to unplug very often.
It also possible to simply solder the wires directly, using the image below as a reference.
If you have a shield wire, it can be connected to either of the large mounting holes.
J5 - Alternate Power Supply
Through the use of J5, users can supply 5V to the T7 if a USB connection is not required. The square shaped pad is V+, and the circular pad is GND. It is useful for individuals who only need Ethernet or WiFi. The J5 connector is a 2 pin 0.1" pitch rectangular header. To prevent accidentally switching V+ and GND, use a keyed connector such as TE Connectivity 3-641215-2.
The 5V supply from J5 goes through R21 (0.1 ohms) and then connects to the device-wide VS bus. The 5V supply from USB goes through R15 (0.1 ohms) and then connects to VS. On the T7-T7Pro, R15 & R21 are both installed by default, and thus the connections for both sources are essentially shorted to each other, and both should not be connected at the same time as one could back-feed the other. If you are going to connect to J5, and there is a possibility of power at the USB connection also, remove R15. You can also replace R15 and R21 with diodes (SMA package) to prevent back-feeding, but even Schottky diodes will have voltage drop that needs to be considered.
Ethernet
The same Ethernet connector is installed on all versions of the T7 due to the inherent magnetic complexities. However, it is possible to 'bring out' a duplicate Ethernet jack to any custom enclosure with one of the following:
- A short Ethernet cable segment and an RJ45 coupler(Plug to Plug). These couplers come in a few varieties: Free hanging (in-line), Chassis Mount, Panel Mount, Bulkhead, Wall Plate, etc. Conec 33TS3101S-88N and Emerson 30-1008KUL are both good options.
- A RJ45 Jack to Plug cable, which is just a standard Ethernet plug on one end, and a Jack (female) on the other end. Again, these come in a wide variety of mounting styles, the simplest of which is the panel mount. TE Connectivity 1546414-4 and Amphenol RJFEZ2203100BTX are both good options.
If selecting your own Ethernet interconnect, insure that it is RJ45, straight-through, and without magnetics.
WiFi
The WiFi antenna jack is a snap-on ultra miniature coaxial connector called u.fl or ipex. The T7-Pro-OEM includes an antenna, but an OEM customer may want to purchase a cable extension that snaps directly to the board. Any antenna with an ultra miniature coaxial connector should work. Most of the time a cable assembly such as TE Connectivity 2032440-1 is used to convert the u.fl connector into an RP-SMA Female Jack.
JP1-JP6 - Screw terminal Locations
The screw terminals are not installed on the OEM T7. Customers will typically use the rectangular header locations (J2, J3) instead of the screw terminals. However, if a different screw terminal style is required, it is possible to buy an OEM T7 and order a custom variety. The screw terminal holes are compatible with almost all 4 position, 0.198" (5.00mm) pitch terminal blocks. A Weidmuller 9993300000 works quite well, and accepts 14-24 AWG wire.
P2, P3 - DB(D-Sub) Locations
The DB15 and DB37 connectors are not installed on an OEM T7. Customers will typically use the rectangular header locations (J2, J3) instead of the DB connectors. However, if a different DB mating style is required, it is possible to buy an OEM T7 and order a custom variety. The DB connectors are standard D-Sub two row receptacles(female sockets), through hole, 15 pin, and 37 pin. The following represent a few valid options.
J2, J3 - Header Locations
Connectors J2 and J3 provide pin-header alternatives to the DB15 and DB37 connectors. The J2 and J3 holes are always present, but are obstructed when the DB15 and DB37 are installed.
J2 - 16 position, 2 row, 0.1" pitch, male pin rectangular header
J3 - 40 position, 2 row, 0.1" pitch, male pin rectangular header
Sometimes customers order tall pin headers that mate directly to a separate custom PCB. Refer to the pinout details below for electrical connections.
J4 - Constant Current Sources
Since the screw terminals are not installed on an OEM T7, the J4 header location can be used to gain access to the constant current sources. Any 6 position 0.1" pitch rectangular header will work.
J8 - Mechanical
The J8 pin header location is purely for mechanical support for that region of the board. There are no electrical connections to this area. It is a 2 position 0.1" pitch rectangular header.
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2013년 12월 23일 첫 게시
