Siemens TC65 User Manual download pdf (Page 12)

TC65Smart

User Manual

Rev. 2-1.0 12

2.2. Connector RJ-11 for Connection of the Two-Wire

UART.

It is used for connection of the accessories to ASC1 TC65. The signals are not isolated from

the common wire of the GSM module and Terminal housing.

4.GND

3.TX/b 2.RX/a

1.+5V

Fig. 2.3

Table 2.2

Cont. Interface Signal Direction Purpose

1 +5V (DC @<200mA) Term. -> Accessories Power supply of the

accessories

RS485 “a” (D+) <-> different. Input/output RS485 not

inverted

RS232 RxD Term. -> Accessories Transmitter output

RS232 (>+/-6V)

LVUART Rx Term. -> Accessories Transmitter output

LVUART (TTL 3.3V)

RS485 “b” (D-) <-> different. Input/output RS485

inverted

RS232 TxD Accessories -> Term. Receiver input

RS232 (>+/-3V)

LVUART Tx Accessories -> Term. Receiver input

LVUART (TTL 3.3V)

4 Common for the control assembly

(housing)

Common wire

1 2 ... 7 8 9 10 11 12 13 14 15 16 17 ... 25 26

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Siemens TC65 User Manual Page 12