Karel MS224, Инструкция по установке и обслуживанию, Страница: 31 / 81

Karel MS224 Installation & Maintenance Guide
Edition 3.2
28
MS224 CPUKON Card PC
PC CM Socket
Pin No
Signal 25-pin connector
Pin No
9-pin connector
Pin No
1 GND 7 5
2 TX 3 2
3 RX 2 3
4 - - -
The signal names above are given with respect to MS224 system and these
pin assignments are valid only for IBM compatible devices. If your device is not
IBM compatible, then you must provide the requested pin connections to
match the signaling parameters of the system.
The communication protocol for PC - Exchange connection is illustrated in the
following table:
For PC
Data Bits 8
Stop Bit 1
Parity None
Baud Rate 4800 Bps
The CM224 and PK224 modules are able to set the communication protocol to
the appropriate values, automatically.
•
D
ATA FORMAT OF
CM224 :
A call record consists of two lines, each followed by Carriage return (0Dh) and
Line Feed (0Ah) characters.
Structure of the first line:
Starting Character
Position
Field Width Information
1 1 #; indicates start of record
2 4 4 digit counter value
6 1 Space
7 4 or 2 Call type
11 1 Space
12 1 Common Pool information
- Call type:
LDIS Long Distance
INTL International
IC Incoming
Call type field and the preceding space are not sent to the PC for local calls.
- Common pool information field contains the character “C” for the calls made
from the common pool. If the call is not made from the common pool then
this field and the preceding space are not sent to the PC.