7188XA/B/C & 7521/2/2A/3/4/7 Series Hardware User’ s Manual, Ver. 3.0 Sep/2002, 7Mh-001-20 -----
23
Pin assignment of bottom 14-pin screw terminal block:
Pin Name Description
1
DO
100 mA, 30V max.
2
DI
3.5V ~ 30V
3
D1+
DATA+ pin of COM1 (RS-485)
4
D1-
DATA - pin of COM1 (RS-485)
5
CTS1 Clear To Send of COM1 (RS-232)
6
RTS1 Request To Send of COM1 (RS-232)
7
GND
Signal ground of RS-232
8
TXD1 Transmits Data of COM1 (RS-232)
9
RXD1 Receives Data of COM1 (RS-232)
10 INIT* Initial pin, 3.5V ~ 30V
11 D2+
DATA+ pin of COM2 (RS-485)
12 D2-
DATA - pin of COM2 (RS-485)
13 +VS
V+ of power supply (+10 to +30VDC unregulated)
14 GND
GND of power supply
Note: The COM1 can be used as a RS-232 port or a RS-485 port. It is not
recommended to use both RS-232 & RS-485 at the same time.
Pin assignment of top 14-pin screw terminal block:
15 TXD3+ TXD+ pin of COM3 (RS-422/RS-485)
16 TXD3- TXD - pin of COM3 (RS-422/RS-485)
17 RXD3+ RXD+ pin of COM3 (RS-422)
18 RXD3- RXD - pin of COM3 (RS-422)
19 DI0
Digital Input, 3.5V ~ 30V, channel 0
20 DI1
Digital Input, 3.5V ~ 30V, channel 1
21 DI2
Digital Input, 3.5V ~ 30V, channel 2
22 DI3
Digital Input, 3.5V ~ 30V, channel 3
23 GND
GND of Digital Output
24 PWR
Power of Digital Output
25 DO0
Digital Output, 100 mA, 30V max., channel 0
26 DO1
Digital Output, 100 mA, 30V max., channel 1
27 DO2
Digital Output, 100 mA, 30V max., channel 2
28 DO3
Digital Output, 100 mA, 30V max., channel 3
ГК
Атлант
Инжиниринг
–
официальный
представитель
в
РФ
и
СНГ
+7(495)109-02-08 [email protected] www.bbrc.ru