Motorola T1/E1 - Manual (Page 17)

Canopy T1/E1 Multiplexer September 2004
T1/E1 Multiplexer FPGA Version 3.4
Page 17 of 73
Table 8: E1 framing specifications
Specification Description
Compliance ITU-T G.703
Framing transparent
Signaling transparent
Table 9: Local terminal and control interface specifications
Specification Description
Type RS-232 via DB-9 Female Connector
Mode DTE
Baud Rate 19.2 kbps
1.3 CONFIGURATION SETTINGS FROM CANOPY FACTORY
1.3.1 Bit Handling Capability
As shipped, Canopy T1/E1 Multiplexers transparently pass all T1 or E1 bits regardless of
◦ user framing as
− D4
− Extended Superframe (ESF)
◦ user encoding as
− AMI
− B8ZS
− HDB3
However, user encoding is helpful for generating meaningful bipolar variation (BPV) data.
Canopy T1/E1 Multiplexers are factory preset to the B8ZS encoding for T1, though easily
changed to another encoding scheme, and are preset as master or slave for timing.
NOTE: To receive the highest level of performance from these units, the user should
understand
◦ clock recovery timing.
◦ packet/frame loss concepts.
◦ delay and latency.
◦ jitter.
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