EnergyHub Inc. EHZPA20 ユーザーズマニュアル
Doc Title
Communication Board Manual
Doc Number
ENG-SPEC-MNL-1040
Rev
1
Doc Type
Product Manual
Department
Engineering
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duplicated, used, disclosed, or distributed without the written consent of EnergyHub, Inc.
Page 5 of 6
Pin P4-13 for the TX2 pin has a 10K pullup on the host interface
Pin P4-14 for the RX2 pin has a 10K pulldown on the host interface
CTS2 and RTS2 are active low.
The default baud rate is 38400. It can be modified in firmware to adapt to the host module.
3.2.3 I2C
The I2C voltage is 3.3V
The I2C requires 4.7k Ohm pullups on the host board.
3.2.4 SPI
SPI logic voltage is 3.3v
Daughter card shall be configured as the slave device.
4
Industry Compliance
4.1 FCC Compliance Statement
This device complies with part 15 of the FCC rules. Operation is subject to the fol-
lowing two conditions:
(1) This device may not cause harmful interference, and
(2) this device must accept any interference received, including interference that may
cause undesired operation. See instructions if interference to radio or television
reception is suspected.
Radio and Television Interference
This equipment has been tested and found to comply with the limits for a Class B digital device in
accordance with the specifications in Part 15 of FCC rules. These specifications are designed to
provide reasonable protection against such interference in a residential installation. However, there is
no guarantee that interference will not occur in a particular installation. You can determine whether
your equipment is causing interference by turning it off. If the interference stops, it was probably
caused by the equipment. If your equipment does cause interference to radio or television reception,
try to correct the interference by using one or more of the following measures:
accordance with the specifications in Part 15 of FCC rules. These specifications are designed to
provide reasonable protection against such interference in a residential installation. However, there is
no guarantee that interference will not occur in a particular installation. You can determine whether
your equipment is causing interference by turning it off. If the interference stops, it was probably
caused by the equipment. If your equipment does cause interference to radio or television reception,
try to correct the interference by using one or more of the following measures:
Change the position of the television or radio antenna until the interference stops.
Move the equipment to one side or the other of the television or radio.
Move the equipment farther away from the television or radio.
Plug the equipment into an outlet that is on a different circuit from the television or radio. (That is,
make certain the computer and the television or radio are on circuits controlled by different circuit
breakers or fuses.)
breakers or fuses.)
If necessary, consult an experienced radio or television technician for help.