|
|
|
|
|
|
|
| 16 |
|
|
|
|
|
|
| +15V |
| ||
RS232 |
|
| 300 |
|
|
|
| 300 |
|
|
|
|
|
|
|
|
|
| |
| DZ13v |
|
|
|
|
| DZ13v |
| |
|
|
| 0.1MF |
|
|
|
| 0.1MF | +5v |
|
|
|
|
| U115 |
| |||
|
|
|
|
|
|
| |||
|
|
|
| 1 | 8 |
|
| ||
|
|
|
| +V |
|
| |||
TRANSMIT | 3 |
|
| 7 | DY | DA | 2 |
|
|
RECEIVE | 2 |
|
| 5 | RA | RY | 3 |
|
|
GND | 5 |
|
| 4 GND RTC 6 |
| DS9 | |||
|
|
|
|
| SN75155 |
| |||
|
|
|
|
|
|
|
|
| |
|
|
|
|
|
|
|
|
| RS485/RS232 |
RS485 |
|
| +5v | 0.1MF |
|
|
|
| |
| 6 |
|
| 8 | U114 | 1 |
| 1K | |
T/R- |
|
|
| VCC R |
| ||||
7 |
|
| 7 | 2 |
|
| |||
| 120 | * R119 | B | RE |
|
| |||
|
| 6 |
|
| 3 |
|
| ||
| 8 ohm |
| 5 | A | DE | 4 |
|
| |
T/R+ | 9 |
|
| GND D |
|
| |||
|
|
|
|
|
|
|
| ||
|
|
| SN75LS176 |
|
| ||||
|
|
|
|
|
| ||||
TRANSMIT/ | 1 1K |
|
|
|
|
|
|
| |
|
|
|
|
|
|
|
|
| |
RECEIVE CONTROL |
|
|
|
|
|
|
| ||
|
| * R802 | +5v |
|
|
|
|
| |
+5V | 4 |
|
|
|
|
|
| ||
|
|
|
|
|
|
|
| ||
|
|
|
|
|
|
|
|
| |
Notes:
*R119 - LINE TERMINATION RESISTOR, USED ON BOTH ENDS OF LONG LINES. NORMALLY NOT MOUNTED.
*R802 - SMD RESISTOR. NORMALLY NOT MOUNTED
COMMUNICATION
DBP - Rev 6/93
