Toshiba Strata AirLink DK40i, Installation And Maintenance Manual

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ISDN Interfaces
ISDN Testing and Troubleshooting
Strata DK I&M 6/00
16-37
ISDN
Inte
rface
s
4. Setup the com-port parameters for 7-bits, even parity, 1-stop bit and the appropriate speed.
Figure 16-29 DK TTY Port BRI Connection to PC
5. Press the Enter key on the PC keyboard
The DK responds with
CODE
6. At the CODE prompt, type the DK, 4-digit code (Program 00 code) from the PC keyboard
The DK responds with
MODE
7. At the MODE prompt, type
TEST
and press Enter from the PC keyboard
The DK responds with
T
Note
Make all entries from the PC keyboard in Capital letters.
8. At the T prompt, type LBUU ss m and press Enter from the PC keyboard
Where ss=BRI PCB slot number and m=BRI circuit number (1-4).
Notes
●
The U-terminal must be idle, and remain idle, during the loop back test.
●
The DK sends 4 octets of data to the U-terminal during the loop back test: 0X00, 0XFF, 0XB2,
and 0X4D. These octets are sent to the B1, B2, and D channels 50 times. If the DK receives
80% of the sent data back, it assumes the test to pass. (i.e., the U-terminal and wiring is good.)
If The DK responds with:
## BUU LOOP BACK TEST ##
SLOT=ss CIRCUIT=m B1:OK B2:OK D:OK
4733
DK System
RBUU
(LT Mode)
PC with Hyper
Terminal
Software
U-Terminal
device
(loop back) 1-pair BRI Circuit Line Cord
3-pair Telephone Cord
RSIU or PIOU
TTY Port TTY Port
Test data from DK sent to Terminal.
If 80% of sent data is returned test
passes.