Nortel Secure Router 4134 Installation — Hardware Components page 97

Table 40
Serial connector pin assignments for DCE mode signal (cont'd.)
Pin Signal Direc-
tion
8
RTS+ Out
9 RTS– Out
10 CTS– In
11
CTS+ In
12 DSR+ In
13 LL I/O
14
TXD– Out
15 TXCE– Out
16 TXC– I/O
17
RXC– In
18 RXD– In
19 DCD– I/O
20
DTR– Out
21 MODE2 In
22 MODE1 In
23
MODE0 In
24
MODE3 In
25 DSR– In
26 —
GND
Table 41
Serial connector cable type coding
Interface type
MODE3 (24)
V.35 DTE GND
V.35 DCE Open
EIA–530 DTE GND
EIA–530 DCE Open
EIA–530A DTE GND
EIA–530A DCE Open
RS–449 DTE GND
Copyright © 2007, 2008 Nortel Networks
.
RS- RS-
232 449
V.10 V.11
CTS CS+
CS–
RS–
RTS RS+
DTR TR+
LL LL
RD–
RT–
ST–
TT–
SD–
RR–
DM–
Open Open
Open GND
GND Open
Open Open
TR–
GND GND
Connector mode pins
MODE2 (21)
Open
Open
GND
GND
GND
GND
Open
Nortel Secure Router 4134
Installation — Hardware Components
NN47263-301 02.01 Standard
18 February 2008
Replacing the internal Compact Flash 97
DCE mode signal
RS- RS-
530 530A
CTS+ CTS+
CTS– CTS–
RTS– RTS–
RTS+ RTS+
DTR+ DTR+
LL LL
RXD– RXD–
RXC– RXC–
TXC– TXC–
TXCE– TXCE–
TXD– TXD–
DCD– DCD–
DSR– DSR–
GND GND
Open GND
GND Open
Open Open
DTR– DTR–
GND GND
MODE1 (22)
GND
GND
Open
Open
GND
GND
GND
V.35 X.21
CTS I+
I–
C–
RTS C+
DTR
LT
RD– R–
SCR– S–
SCT–
SCTE–
TD– T–
Open GND
GND Open
GND Open
Open Open
GND GND
MODE0 (23)
GND
GND
GND
GND
Open
Open
Open