
14
C
HAPTER
1: S
YSTEM
D
ESCRIPTION
X.21 DCE cable pinouts
(60-pin connector) to
DB-15 female
Signal
Pin # on
Pin # on
Direction
Name
60-pin
DB-15
(for QSIM)
Frame GND
46
1
Circuit GND
15
8
RTS
1,2
3,10
IN
CTS
9,10
5,12
OUT
DSR
OUT
DCD (not used; tristate when in DTE mode)
DTR
IN
LL (not used)
IN
SD+
28
2
IN
SD-
27
9
IN
RD+
11
4
OUT
RD-
12
11
OUT
SCTE+
IN
SCTE-
IN
SCR+
24
6
OUT
SCR-
23
13
OUT
(tristate SCR + and - when in DTE mode,
double term., double buffer)
SCT+
OUT
SCT-
OUT
Shorting
GR 1
47,48
Shorting
GR 2
51, 52
(continued)
Table 4
PathBuilder S330 System Specifications
Содержание 3C63311 - SuperStack II PathBuilder S310 Bridge/router
Страница 86: ...74 CHAPTER 3 GETTING STARTED ...
Страница 176: ...164 CHAPTER 4 CONFIGURING PATHBUILDER S330 S310 MODULES PORTS AND APPLICATIONS ...
Страница 260: ...248 INDEX ...