Eiconcard™ Family Installation Guide
page 23
V.24 DCE interface
A pin-out diagram for the V.24
DCE interface is shown in
Figure 1. The signal definitions
and names are listed in Table 3.
Table 3. 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
PG N D
RXD
RTS
1
RI
DCD
SG N D
TXD
TCLK
CTS
DSR
DTR
DTECLK
TEST
RLB
TI
25
RCLK
14
13
Figure 1. V.24 DCE interface
64-0308-09.fm Page 23 Monday, March 15, 2010 3:32 PM
