A–14
DEC WANrouter 90 Owner’s Manual
Figure A–9: Wiring Diagram for H3199 Universal Loopback Connector
LKG-5984-92I
1
2
3
4
5
6
7
8
50-Pin D-Connector
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
TXD A
TXD B
TXD
RTS A
RTS B
RXD A
RXD B
LOC LBK
TEST IND
REM LPBK
RI
RXCLK A
TRCLK A
CLK
V35 TXCLK A
V35 TXCLK B
V35 CLK A
V35 CLK B
V35 RXD A
V35 TXD A
V35 TXD B
V35 RXCLK A
V35 RXCLK B
DTR
DSR A
DSR B
RTS
DCD A
38
39
40
41
42
43
44
45
46
47
48
49
50
DCD B
CTS A
CTS B
TEST TXD
TEST RTS
DTE GND
DTR A
DTR B
CLK A
CLK B
TEST TXCLK
DSRS
SMI
RXCLK B
TRCLK B
V35 RXD B
DCE GND
A.2.1.8
H3198, 37-Pin, Loopback Connector
Use the H3198, 37-pin, loopback connector to test the following:
