User manual

DTS Broadcast PDH Microwave Digital Radio User Manual
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6.1.1.1 Messages of 4/8/16E1 service card
Three E1 service cards are current available: a 4E1 version, an 8E1 version and a 16E1 version.
And two interfaces for E1 service card are current available: a 75ohm unbalanced and a 120ohm
balanced.
All E1 service cards have same messages for displaying list below:
This screen displays alarm messages of service card. Four tributaries of E1 data form a group data.
And so 16 tribs of E1 data form 4 groups: E1-A, E1-B, E1-C and E1-D. Every group have there own
alarm message. Press
keys then display local or remote alarm messages of 4 groups. But
group E1-C and group E1-D will not be displayed if rate is set to 8E1 or 4E1, and also group E1-B will
not be displayed if rate is set to 4E1.
The alarm will be displayed if alarm accured. Alarm messages are: RAD (Remote alarmed for this
group), AIS (This Group of Remote is all “1” alarm), or OOF (This group of local is frame loss) and
GLOS (This group of local is all “1”).
Press
_keys to appear similar following message:
This screen displays status of use 4 E1s of group: Displaying “IN” means data fed in this tributary;
displaying “LS” means no data in this tributary; displaying “NU” means this tributary is configured to
be unused.
Applying data to a tributary whose configuration has been set to “NU” WILL not cause a tributary
LOS alarm; however, the tributary will pass traffic.