CHAPTER 4
NDA-24299
Page 38
Revision 1.0
INSTALLATION
Key Setting on Circuit Cards
SW4D
1
ON
Transmission Signal A Logic: Negative
OFF
×
Transmission Signal A Logic: Positive
2
ON
Receiving Signal A Logic: Negative
OFF
×
Receiving Signal A Logic: Positive
3
ON
RMT Alarm Sending: Not to be sent out
OFF
×
RMT Alarm Sending: To be sent out
4
ON
×
Simultaneous Seizure Supervision: Not to be
controlled
OFF
Simultaneous Seizure Supervision: To be
controlled
5
ON
Data Link Control: MOS
OFF
×
Data Link Control: BOS
6
ON
Multiframe Selection: 12-Multiframe
OFF
Multiframe Selection: 24-Multiframe
7
ON
Signal Selection: AMI (Alternate Mark
Inversion)
OFF
Signal Selection: B8ZS (Bipolar with 8 Zeros
Substitution)
8
ON
×
Fixed
SW25
1
ON
×
Impedance setting: 100
Ω
OFF
Impedance setting: 110
Ω
2
ON
Transformer at Middle Point – Transmission:
Ground
OFF
×
Transformer at Middle Point – Transmission:
Open
3
ON
Transformer at Middle Point Receive: Ground
OFF
×
Transformer at Middle Point Receive: Open
4
ON
Idle Code: To be sent out
OFF
×
Idle Code: Not to be sent out
Table 4-4 Switch Setting Patterns for the DTI Card (Continued)
SWITCH NAME
SWITCH
NUMBER
SETTING
STANDARD
SETTING
MEANING
1
2
3
4
5
6
7
8
OF F
1
2
3
4
OFF
Содержание NEAX 2400 IPX
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