Black Box LRU4240 - Manual (Page 138)

126 SALES: 0118 965 5100 Dual Trunk E1 Router User’s Guide
Dual Trunk E1 Router
Table D-27 Menu-4A Unit Configuration
Table D-28 Menu-4B Net Configuration and status
Time/Date Identifies the time the status change/event was logged.
Parameter Description
UNIT Protect Mode - Enabled or Disabled;
Enabled - Protect mode prevents you from running tests from the front
panel.
Yellow Alarm - Enabled or Disabled;
Enabled - The unit detects and generates a Yellow Alarm.
Disabled - The unit does not detect or generate a Yellow Alarm.
NETWORK Main/Alt Sync - INT, NET1, NET2
Selects the E1 network transmitter’s clock source. First specify the Main
clock source value, then the Alternate. (Each clock source has the same
options.)
Type
y to confirm each action.
NET: Select this option if the network is the clock source. If it is not, set to
Int at one E1 end, and NET at the other end.
Parameter Description
NET 1/2 Framing
Selects the Network T1/E1 framing format.
E1: CRC4 enabled, CRC4 disabled, and unstructured
(
Line Impedence
View setting of E1 line impedence (75 ohm or 120 ohm)
Table D-29 Menu-4T GMT Time synchronization
Parameter Description
Time/Date Automatic Sync
Set automatic synchronization to Enabled or Disabled.
Default: Disabled
How Often Set the frequency of how often to synchronize the time with the time server (Days,
hours, minutes, seconds)
Next sync Displays synchronization count down and next scheduled synchronization
Time Src Configure primary and secondary time server IP addresses and port of which time
servers are connected
Attempts Displays count of access attempts to time server
Parameter Description Default