Black Box LRU4240 - Manual (Page 142)

130 SALES: 0118 965 5100 Dual Trunk E1 Router User’s Guide
Dual Trunk E1 Router
Table D-38 Menu-8E Modem Initialization Strings
Table D-39 Menu-8F Comm Port configuration
Table D-40 Menu-9A Physical layer diagnostics
In-band CRC Error Threshold —Enable or Disabled
Enabled—The valid range for this is 4 x 10 -7 to 9 x 10 -1 .
Disabled—No alarm is generated if threshold rate of errors is high.
Parameter Default
String 1 – Modem initialization string can be up to 20 characters. N/A
String 2 – Modem initialization string can be up to 60 characters. N/A
Parameter Default
COMM PORT – Baud Rate
Parity
Word Length
Stop Bits 38400
None
8
2
DCD – Enabled or Disabled
Enabled – The Multilink Select uses the modem’s Data Carrier Detect (DCD)
signal to provide more robust modem operation.
Disabled – Use Disabled if your null modem does not pass the Data Carrier
Detect signal. Disabled
XON/XOFF – Disabled, XOFF until ANY, XOFF until XON
XOFF until ANY – Ctrl-S stops data flow from unit, any key resumes data
flow.
XOFF until XON – Ctrl stops data flow from unit, Ctrl-Q resumes flow.
Disabled – XON/XOFF feature disabled. Disabled
Field Definition — Options Default
Choosing a test by number You may type in a number to select a test, instead of using
the arrow keys. For instance, if you type in “3,” you will
select the Net Lpbk test.
Current Test Displays the test currently running. If no test is selected, the
field reads
Idle.
Idle
Pattern Test If no pattern test is running, the test reads
idle
. When a
pattern test is started, it will read Searching . When the
current pattern test is locked, it displays locked
seconds. Locked seconds
is a 16-bit counter
saturating at 65536. The counter resets to 0 when the
current pattern is lost. The counter label will change to
Relocked Seconds if the current pattern is lost and
found again.
Options: Idle, Searching, Locked, and Relocked
Parameter—Options; Definitions