X.21 Serial Port
79
SmartNode 4830 Getting Started Guide
D • Port pin-outs
X.21 Serial Port
FXS port
The FXS ports use an RJ-11 connector with 6 positions. The middle two positions, 3 and 4, are used according
to
table 18
.
Note
Pins not listed are not used.
FXO port
The FXO ports use an RJ-11 connector with 6 positions. The middle two positions, 3 and 4, are used accord-
ing to
table 19
.
Note
Pins not listed are not used.
Table 17. X.21 Female DB-15 connector
X.21 Interface Pin-Out
Pin
Signal
1
Signal Ground
2
TD-d
3
Control-a
4
RD-a
5
Indication-a
6
Signal Element Timing (Clock) -a
8
DTE Common Return
9
TD-b
10
Control-b
11
RD-b
12
Indication-b
13
Signal Element Timing (Clock)-b
Table 18. RJ-11 socket
Pin
Signal
3
Ring (-)
4
Tip (+)
Table 19. RJ-11 socket
Pin
Signal
3
Ring (-)
4
Tip (+)
Содержание SmartNode 4830 Series
Страница 52: ...52 Chapter 5 LEDs status and monitoring Chapter contents Status LEDs 53...
Страница 81: ...81 Appendix E SmartNode 4830 Series factory configuration Chapter contents Introduction 82...
Страница 83: ...83 Appendix F Installation checklist Chapter contents Introduction 84...
Страница 85: ...85 Appendix G Accessories Chapter contents Introduction 86...
