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ErgoLine D310/320
Customer Engineer Manual
Loudspeaker
Program
Self test of the ErgoLine D320
If the terminal is powered up with the handset on hook and the '*' and '#' keys
pressed simultaneously a factory self test mode is entered. This self test mode
clears all programmed data and programming locks, and the message SELFTEST is
displayed.
If the terminal is powered up with the handset on hook and the '7' and '9' keys
pressed simultaneously an installer self test mode is entered. This performs a self
test only and does not clear programming data or locks, and the message
SELFTEST is displayed.
If the terminal is powered up with the handset on hook and the '4' and '6' keys
pressed simultaneously, all locks are cleared.
After completion of a self test the terminal attempts a normal start-up.
The self test performs the following functions in sequence. For tests 1 through 5 a
full stop character is appended to the display for each test completed. This
indicates progress of self test to the user.
Refer to Figure 5.2 for the names and locations of the keys.
1 The micro-controller ROM is verified with a checksum. If an error occurs then
the self test terminates and the message BAD CHKSUM is displayed.
2 The external RAM is checked. If an error is detected then the self test
terminates and the message BAD EXTERNAL RAM is displayed.
3 The EEPROM is verified. If a fault occurs then the self test is terminated and
the message BAD EEPROM is displayed
4 Note that for factory self test the terminal settings and memory keys revert
back to their defaults if the EEPROM check succeeds. For installer self test
the terminal settings and memory key contents are maintained.
5 The U
or S
p
0
the self test terminates and the message BAD HDLC/L1 is displayed.
Page 5-12
1
GHI
4
PQRS
7
F
5.1 D310
IGURE
interface is looped back internally and tested. If a fault occurs,
Er goLi ne
ABC
DEF
2
3
JKL
M N O
6
5
TUV
W XYZ
8
9
0
KEYS
Hold
LNR
M3
M2
Memory Keys
M1
- Quick Links:
- User Features
- Ergoline D330
- Keys
- Programmable Keys
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