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Data Network Terminal Single-port and Multiport Operating Instructions
46 (128) © Nokia Corporation DN01145897
Nokia Proprietary and Confidential Issue2-0en
Table 9. Port parameters, X.21
Port rate n x 64k (n=1)
Use of V.110 rate adaptation in
port 2 or 3
Not in use
In port 2 or 3 9600 kbit/s, Synchronous
Remote loop detection Allowed
Externally caused alarms Disabled (not to be seen through Q1).
However, even if these alarms are disabled, they
cause front panel alarms.
Circuit C Ignored
Circuit I Follows line synchronisation
Use of RL request from DTE Disabled
Use of LL request from DTE Disabled
Table 10. Port parameters, G.703/64k
Port rate n x 64k (n=1)
Remote loop detection Allowed
Externally caused alarms Disabled (not to be seen through Q1).
However, even if these alarms are disabled, they
cause front panel alarms.
Port rate 64k (always)
Interface mode Codirectional
AIS mode No octet timing
Table 11. Port parameters, G.704/2M
Port rate n x 64k (n=1)
Remote loop detection Allowed
Externally caused alarms Disabled (not to be seen through Q1).
However, even if these alarms are disabled, they
cause front panel alarms.
Framing format Basic frame