Specifications of Serial Interface COM1/COM
This interface is used to connect:
oXBT GT1005 series to remote equipment, via an RS-232C or RS-485 cable. The connector used is a RJ45-type connector.
oXBT GT2000/4000/5000/6000/7000 series to remote equipment, via an RS-232C or RS-422-485 cable. The connector used is a 9-pin SUB-D connector.
oXBT GK series to remote equipment, via an RS-232C or RS-422-485 cable. The connector used is a 9-pin SUB-D connector.
oXBT GH series to remote equipment, via an RS-232C or RS-422-485 cable. The connector used is a 9-pin SUB-D connector.
When using a long PLC cable to connect to the unit, it is possible the cable can be at a different electrical potential than the unit, even if both are connected to ground.
The unit’s serial port is not isolated. The SG (signal ground) and the FG (frame ground) terminals are connected inside the unit.
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ELECTRIC SHOCK |
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oMake a direct connection between the frame ground (FG) terminal and ground. oDo not connect other devices to ground through the frame ground (FG) terminal of this device. oInstall all cables according to local codes and requirements. If local codes do not require grounding, follow a reliable guide such as the US National Electrical Code, Article 800. |
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Failure to follow these instructions will result in death or serious injury. |
XBT GT1005 Series Serial Interface COM1
This interface is used to connect a RS-232C/RS-485 serial cable. An RJ45 8-pin plug connector is used.
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Pin Connection |
Pin |
Signal Name |
Direction |
Meaning |
|---|---|---|---|---|
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1 |
RXD |
Input |
Receive Data (RS-232C) |
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2 |
TXD |
Output |
Send Data (RS-232C) |
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3 |
Not connected |
- |
- |
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4 |
D1 |
Output/Input |
Transfer Data (RS-485) |
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5 |
D0 |
Output/Input |
Transfer Data (RS-485) |
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6 |
RTS |
Output |
Request To Send |
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7 |
Not connected |
- |
- |
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8 |
SG |
- |
Signal Ground |
Any excessive weight or stress on communication cables may cause an equipment’s disconnection and unintended equipment operation.
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LOSS OF POWER |
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oAll connections to the communication ports on the bottom and sides of the unit must not put excessive stress on the ports. oSecurely attach communication cables to the panel or cabinet. oUse only RJ45 cables with a locking tab in good condition. oUse RJ45 connectors with locking system. |
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Failure to follow these instructions can result in injury or equipment damage. |
XBT GT2000/4000/5000/6000/7000, XBT GK series Serial Interface COM1, XBT GH COM
The following table describes the serial interface with a 9-pin SUB-D connector via an RS-232C cable.
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Pin Connection |
Pin |
Signal Name |
Direction |
Meaning |
|---|---|---|---|---|
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1 |
CD |
Input |
Carrier Detect |
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2 |
RD(RXD) |
Input |
Receive Data |
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3 |
SD(TXD) |
Output |
Send Data |
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4 |
ER(DTR) |
Output |
Data Terminal Ready |
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5 |
SG |
- |
Signal Ground |
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6 |
DR(DSR) |
Input |
Data Set Ready |
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7 |
RS(RTS) |
Output |
Request to Send |
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8 |
CS(CTS) |
Input |
Send Possible |
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9 |
CI(RI)/VCC |
Input |
Called status display/+5V5% Output 0.25A |
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Shell |
FG |
- |
Frame Ground (Common with SG) |
The following table describes the serial interface with a 9-pin SUB-D connector via an RS-422/RS-485 cable.
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Pin Connection |
Pin |
Signal Name |
Direction |
Meaning |
|---|---|---|---|---|
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1 |
RDA |
Input |
Receive Data A (+) |
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2 |
RDB |
Input |
Receive Data B (-) |
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3 |
SDA |
Output |
Send Data A (+) |
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4 |
ERA |
Output |
Data Terminal Ready A (+) |
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5 |
SG |
- |
Signal Ground |
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6 |
CSB |
Input |
Send Possible B (-) |
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7 |
SDB |
Output |
Send Data B (-) |
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8 |
CSA |
Input |
Send Possible (A) |
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9 |
ERB |
Output |
Data Terminal Ready B (-) |
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Shell |
FG |
- |
Frame Ground (Common with SG) |
Any excessive weight or stress on communication cables may cause an equipment’s disconnection.
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LOSS OF POWER |
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oAll connections to the communication ports on the bottom and sides of the unit must not put excessive stress on the ports. oSecurely attach communication cables to the panel or cabinet. oUse only 9-pin SUB-D cables with a locking system in good condition. |
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Failure to follow these instructions can result in injury or equipment damage. |
