NEC ELECTRA ELITE IPK II - Connections; Connectors

Electra Elite IPK II Document Revision 3
System Hardware Manual 6 - 55
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J Excessive Bipolar Violation (BPV) Detection
On red when excessive BPV is detected.
J Line Synchronization Alarm (LSA) Detection
On red when an FT1 trunk loses frame synchronization.
J Out-of-Frame (OOF) Condition Detection
On red when two of the four or five framing data bits received
are in error.
J Remote Alarm Indication (RAI) Detection
On red when RAl is received.
5.9.6 Connectors
The following connector is included:
J CN1 Connects to the backplane.
J CN3 Serial Port DB-9
5.9.7 Connections
Although the DTI-U40 ETU can connect directly to the Telco TI
Smart Jack, your Telco may require you to purchase and install a
separate Channel Service Unit (CSU) between the Smart Jack and
the DTI-U40 ETU.
Figure 6-27 DTI-U40 ETU Connectors
TELCO
T1
Provider
CSU/DSU
4-Wire
Cable
MDF
TA
TB
RA
RB
TELCO
T1
Provider
4-Wire
Cable
MDF
TA
TB
RA
RB