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Description
P0914209
Standard 3.00
April 2000
Functionality
The Mini-Carrier Remote system can be user-configured to use only certain
time slots, in this way allowing “drop-and-insert” channel banks to use the
time slots not used by MCR. This allows customers to use LAN bridges via
the remaining time slots to connect between local and remote LANs. MCR
always uses the first two channels of T1 (channels 1 and 2).
ESF and D4 framing modes are supported, CRC-6 errors are counted in ESF
mode and bipolar violations are counted in D4 mode to determine system
health. B8ZS must always be used for MCR. Signaling must be clear-channel
end-to-end. Robbed-bit signaling is not supported.
One Mini-Carrier Remote system supports eight IPE cards physically located
up to 4000 miles apart (depending on actual T1 routing) over as many as 2
standard T1 (1.544 Mbps) facilities. MCR survives up to 54 milliseconds
(ms) of delay. For analog channels, echo cancellers are recommended for
round-trip T1 delays of greater than 5ms. MCR signaling channels 1 and 2
must not go through echo cancellers.
Note: Echo cancellers must not be used for data calls.
System characteristics
The MCR system:
•
is compliant with North American requirements,
•
remotes existing digital and analog line cards as well as the existing
analog universal trunk card,
•
supports existing design versions of the Option 11 cabinets including AC
and DC power options as well as the existing environmental
requirements for both local and remote sites,
•
supports existing design versions of the IPE module, cabinet and power
components for use at the local site,
•
possesses limited call processing capability, referred to as Emergency
Stand-Alone Mode (ESAM), during link failure or initial installation at
remote site,
Содержание Meridian 1 Mini-Carrier Remote
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