Case Communications 8000 Series Guía de instalación Pagina 32

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PIM7 port a Synchronous X.21 DTE
Part Number X890-607111
Interface 15-way D-type plug (male) DTE
Controls In Indication
Controls Out Control
Clock Signal Element Timing 'S'
Clock Source External, Internal
Clocking Speeds Internal: 2400, 4800, 7200, 9600, 19200,
48000, 64000, 128000 and 256000
External: up to 256000
Pin X.21 Signal Description
1 FG Frame Ground
2 T(A) Transmit Data+
3 C(A) Control+
4 R(A) Receive Data+
5 I(A) Indication+
7 CLK(A) Clock Out+
6 S(A) Clock+
8 G Signal Ground
9 T(B) Transmit Data –
10 C(B) Control –
11 R(B) Receive Data –
12 I(B) Indication –
13 S(B) Clock –
14 CLK(B) ClockOut –
X870-300451 Issue 2 B-8 Rev.0
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