Eicon Networks ISDN NT1 Przewodnik Instalacji Pobierz pdf (Strona 36)

V.24 port specifications

page 36

V.24 port specifications

V.24 DCE Interface

The V.24 port is wired as a V.24 DCE interface as shown in

Figure 14 for the Eiconcard C90, C91 S/T, and C91 V2, and

Figure 15 for the Eiconcard C91 PCIe LP. The signal definitions and

names are listed in Table 9.

Table 9. V.24 DCE Interface Signals

Pin # Signal Name Direction CCITT #

1 PGND Protective Ground Common 101

2 TXD Transmit Data Output 103

3 RXD Receive Data Input 104

4 RTS Request to Send Output 105

5 CTS Clear to Send Input 106

6 DSR Data Set Ready Input 107

7 SGND Signal Ground Common 102

8 DCD Data Carrier Detect Input 109

15 TCLK Transmit Clock (DCE) Input 114

17 RCLK Receive Clock Input 115

18 TEST Local Loopback Activation Output 141

20 DTR Data Terminal Ready Output 108

21 RLB Remote Loopback Output 140

22 RI Ring Indicator Input 125

24 DTECLK Transmit Clock (DTE) Output 113

25 TI Test Indicator Input 142

Figure 14. DB-25 female

connector X.24 DCE interface

PGND

RXD

RTS

DCD

SGND

TXD

TCLK

CTS

DSR

DTR

DTECLK

TEST

RLB

RCLK

DSR

CTS

RCLK

SGND

RTS

RXD

TCLK

RLB

Figure 15. Micro-D 25 plug

connector X.24 DCE interface

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