Enterasys Networks XSR-3020 - Manual (Page 93)

Cable, CompactFlash and Accessory Specifications
XSR Getting Started Guide A-7
2/4-Port Serial NIM Card Port
The High Speed Serial NIM card, as shown in Figure A-6 , provides a WAN interface supporting a
serial link to four different types of DTEs: DB-15, 25, 37, and V.35. This interface supports dual and
quad traffic up to 8 Mbps.
Figure A-6 High Speed Serial NIM Port
Refer to Figure A-7 through Figure A-11 for pinout assignments.
Figure A-7 X.21 DTE Pin Assignments
Pin 1
Pin 68
68-pin Serial
19
27
21
26
3
11
5
10
4
7
6
8
15
16
9
14
4
11
2
9
3
10
5
12
6
13
8
1
Receive0+
Receive0-
Transmt0+
Transmit0-
Control0+
Control0-
Indication0+
Indication0-
Timing0+
Timing0-
Signal GND
Shield GND
Signal GND
37
45
39
44
38
41
40
42
49
50
43
48
J1 J2
J3
J4
X.21 DTE
J1 - 68-pin male SCSI III type connector
J2...J5 - DB-15 type male connector
- Indicates Twisted Pair
Notes:
1
.
2. Shield GND is braid on braided cable
3. Shield GND is drain wire on foil shield cable
4. Braid or foil must enter and make contact
inside metal connector hood
5. All connectors must be metal
6. Pins not shown are unused
4
11
2
9
3
10
5
12
6
13
8
1
Receive1+
Receive1-
Transmt1+
Transmit1-
Control1+
Control1-
Indication1+
Indication1-
Timing1+
Timing1-
Signal GND
Shield GND
Signal GND
4
11
2
9
Receive2+
Receive2-
Transmt2+
Transmit2-
C t l2+
PORT 1
PORT 2
19
27
21
26
20
23
22
24
31
32
25
30
53
61
55
60
54
57
56
58
65
66
59
64
J4
J5
4
11
2
9
3
10
5
12
6
13
8
1
Receive2+
Receive2-
Transmt2+
Transmit2-
Control2+
Control2-
Indication2+
Indication2-
Timing2+
Timing2-
Signal GND
Shield GND
Signal GND
4
11
2
9
3
10
5
12
6
13
8
1
Receive3+
Receive3-
Transmt3+
Transmit3-
Control3+
Control3-
Indication3+
Indication3-
Timing3+
Timing3-
Signal GND
Shield GND
Signal GND
J1: 68-pin male SCSI II type connector
J2 - J5: DB-15 type male connector