Installation DXC5K/EN
IN/A22
DXC 5000
Page 27/34
Pin Number
Signal
Source
11
External Clock Return
DTE
12 Transmit
Clock
Return
DCE
13
Clear To Send Return
DCE
14
Transmit Data Return
DTE
15 Transmit
Clock
DCE
16 Receive
Data
Return
DCE
17 Receive
Clock
DCE
18 Local
Loopback
DTE
19
Request To Send Return
DTE
20 Data
Terminal
Ready
DTE
21 Remote
Loopback
DTE
22
Data Set Ready Return
DCE
23
Data Terminal Ready Return
DTE
24 External
Clock
DTE
25 Test
Mode
DCE
TABLE 31: V.36/ EIA530/ DB25 DTE PORT PIN DEFINITION
Pin Number
Signal
Source
1 Cable
Shield
2 Transmit
Data
DTE
3 Control
DTE
4 Receive
Data
DCE
5 Indication
DCE
6 Signal
Timing
DCE
7 External
Clock
DTE
8 Signal
Ground
9
Transmit Data Return
DTE
10 Control
Return
DTE
11 Receive
Data
Return
DCE
12 Indication
Return
DCE
13
Signal Timing Return
DCE
14
External Clock Return
DTE
15 Unassigned
TABLE 32: X.21/V.11 AND DB15 DTE PORT PIN DEFINITION