MSBR Series 41 Mediant 800 MSBR
Hardware Installation Manual 6. Cabling the Device
6.2.5 E1/T1 WAN Cabling
The device provides a WAN connection through up to four E1/T1 WAN Data Service
Unit/Channel Service Unit (DSU/CSU) port interfaces. The E1/T1 WAN lines transmit and
receive data using IP over Point-to-Point Protocol (PPP) framing (up to two separate links),
IP over High-Level Data Link Control (HDLC) framing (up to two separate links), or bundling
both physical links into a single logical link using IP over Multilink Point-to-Point Protocol
(ML-PPP) framing (RFC 1717).
Cable specification:
Connector: RJ-45
Connector Pinouts:
Figure 6-7: RJ-45 Connector Pinouts for E1/T1 WAN
If the device is ordered with a single E1/T1 WAN port, a splitter cable adapter (RJ-45 male
to two RJ-45 female shielded) is supplied to provide connection to one or two E1/T1 lines.
The Customer Product Number (CPN) for this cable is RCBA50002. If the device is ordered
with multiple E1/T1 WAN ports (e.g., two or four ports), a splitter cable is not required as
these ports already reflect the E1/T1 WAN line connections.
Figure 6-8: Splitter Cable for Single E1/T1 WAN Port
Warning: To protect against electrical shock and fire, use a 26 AWG min wire to
connect the T1 WAN port.
To connect the E1/T1 WAN port to E1/T1 lines:
1. Connect the RJ-45 connector on one end of the cable to the E1/T1 WAN port, labeled
T1E1.
Figure 6-9: Connecting the E1/T1 WAN Port
2. Connect the other end of the cable to the E1 or T1 line.
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