TB1000 Terminal Block Adaptor

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TB1000

The TB1000 terminal block adaptor is designed to be used with DS1000, DS1002, and DS1003 devices (or IB1000, IB1002, and IB1003 boards). This adaptor "converts" DB9 connectors of the DS1000, DS1002, and DS1003 into 9-terminal blocks of "spring clamp" type. These are convenient for attaching wires, which is very useful for industrial installations.

Each terminal of the terminal block connects directly to a pin on the DB9 connector. Pin numbers on DB9 connectors and terminal blocks match exactly. Therefore, terminal assignment on each terminal block is as follows:

 

Terminal #

RS232 mode

RS422 mode

RS485 mode

1

---

RTS- (output)

---

2

RX (input)

RX- (input)

RX- (input)

3

TX (output)

TX+ (output)

TX+ (output)

4

DTR (output)

TX- (output)

TX- (output)

5

SYSTEM GROUND

SYSTEM GROUND

SYSTEM GROUND

6

DSR (input)

RX+ (input)

RX+ (input)

7

RTS (output)

RTS+ (output)

---

8

CTS (input)

CTS+ (input)

---

9

---

CTS- (input)

---

 

DS1002 and DS1003 devices have universal serial ports that can additionally work in RS422 and RS485 modes. Proper signal termination may be required when longer cables are used in these modes. The TB1000 have four switch blocks, one for each port. Each switch block includes four switches. When closed, each switch connects a termination circuit between the "+" and "-" signals in a signal pair:

 

Switch # within the block

Signal pair

1

CTS+/CTS-

2

RTS+/RTS-

3

RX+/RX-

4

TX+/TX-

 

terminator

 

The TB1000 can be additionally secured on the DS10xx device using four screws (included). This terminal block adaptor is also compatible with the "secondary cover", also known as "waterproof cover".