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Nokia DNT2Mi sp/mp User Manual

Page 46

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Data Network Terminal Single-port and Multiport Operating Instructions

46 (128)

© Nokia Corporation

DN01145897

Nokia Proprietary and Confidential

Issue 2-0 en

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