Nortel Secure Router 4134 Installation — Hardware Components page 98

98 Interface connector pin assignments
Table 41
Serial connector cable type coding (cont'd.)
Interface type
MODE3 (24)
RS–449 DCE Open
RS–232 DTE GND
RS–232 DCE Open
X.21 DTE GND
X.21 DCE Open
Table 42
HSSI connector pin assignments
Signal name
SG (Signal Ground)
RT (Receive Timing)
CA (DCE Available)
RD (Receive Data)
LC (Loop–back C)
ST (Send Timing)
SG (Signal Ground)
TA (DTE Available)
TT (Terminal Timing)
LA (Loop–back A)
SD (Send Data)
LB (Loop–back B)
SG (Signal Ground)
Not Used
SG (Signal Ground)
Not Used
TM (Test Mode)
SG (Signal Ground)
Copyright © 2007, 2008 Nortel Networks
.
Connector mode pins
MODE2 (21)
Open
Open
Open
GND
GND
Positive Negative
pin pin
1 26
2 27
3 28
4 29
5
30
6 31
7
32
8 33
9 34
10 35
11 36
12 37
13 38
14–18 39-43
19 44
20–23 45-48
24 49
25 50
Nortel Secure Router 4134
Installation — Hardware Components
NN47263-301 02.01 Standard
18 February 2008
MODE1 (22) MODE0 (23)
GND Open
Open GND
Open GND
Open Open
Open Open
Direction DTE
signal
name
— —
Input RT
Input CA
Input RD
Input LC
Input ST
— —
Output TA
Output TT
Output LA
Output SD
Output LB
— —
— —
— —
— —
Input TM
— —
DCE
signal
name
—
TT
TA
SD
LA
—
—
CA
RT
LC
RD
TM
—
—
—
—
LB
—