RAM CLEAR OPERATION
ENTER PASSWORD
0
Enter system password (2001) and enter [CASH] key.
4-5 Communication Port Loop Back Test
This test checks if serial port circuit works by loop back sequence.
Before starting this test, loop‑back connector should be connected to a D‑SUB connector without
port #2 that you want to check. This loop‑back connector should be shorted 2
nd
pin and 3
rd
,4
th
and 8
th
.
PIN Assignment
PIN# #1 PORT A #2 PORT B
#3 PORT C
#4 PORT D
with IF. cable
On the Main Board
Extension Memory I/O Borad
1 NC NC
NC
NC
2 RXD (RXD)
RXD
RXD
3 TXD (TXD)
TXD
TXD
4 DTR (DTR)
DTR
DTR
5 SG SG
SG
SG
6 DSR TX-
NC
NC
7 RTS TX+
NC
NC
8 CTS (CTS)
CTS
CTS
9 +5V +5V
(+5V)
(+5V)
2
Summary of Contents for PS2000TL+
Page 1: ...V1 31...
Page 22: ...5 13 Keyboard Physical Position Matrix for Conventional Key Type 11...
Page 29: ...EXPLODED DIAGRAM for M T245 3...
Page 36: ...EXPLODED DIAGRAM for Conventional Keyboard 10...
Page 37: ...EXPLODED DIAGRAM for Flat Keyboard 11...
