GAI-Tronics L3149B C200 Advanced Deskset - Manual (Page 45)

L3149B (C200) Advanced Tone Remote Desk Set Installation
39
PROG 3/7 – RS-232 Diagnostic
This diagnostic exercises the RS-232 port TX and RX data. To run this test, disconnect anything
connected to the programming connector on the back of the unit, and short pins 2 and 7 of the connector.
Once the short is completed, this unit sends data on the TX wire for receipt on the RX wire. If the same
data is received on the RX wire, the unit continues to send data. If no data, or incorrect data is received,
the unit stops sending data and displays failure.
Note that this diagnostic does not guarantee standard RS-232 levels. If the diagnostic functions, but the
unit does not operate with a PC or printer, verify with an oscilloscope that the proper RS-232 levels are
present. Press
TRANSMIT
to exit the RS-232 diagnostic.
PROG 4/8 - Keyboard Diagnostic
This diagnostic verifies that the keyboard is operating correctly. After entering the keyboard diagnostic
mode, the display shows:
KEYBOARD TEST
KEYCODE: XX
When any key is pressed (except
TRANSMIT
), the corresponding keycode is displayed. Refer to the
keycode table that follows:
Button Keycode (Hex) Button Keycode (Hex)
0–9 00–09 PROG 1/5 - PROG 4/8 30–33
* 0e MDC 45
# 0f PAGE 44
TRANSMIT No code (Will exit test.) CLEAR 47
MONITOR 11 SELECT 46
IC 13 DOWN 40
VOLUME
Down 20 UP 41
VOLUME
Up 21
Press
TRANSMIT
to exit the keyboard diagnostic.