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3Com NETBuilder II HSS V.35/RS232 Pigtail Cable # 07-0170-000
This chapter describes cables used with NETBuilder II HSS modules. The following cables are described:
This pigtail cable converts the 25-pin connector of the HSS V.35/RS-232 module into a V.35 connector.
07-0170-000-01
To connect to the HSS module, you must use a V.35 DTR dial cable on
Figure 8-1 V.35 Pigtail Cable for HSS V.35/RS-232 Module
This cable converts the HSS RS-449 3-Port module connector into three RS-449 interfaces. You can use it for dial-up or leased lines.
This cable ships with the module.
RS-449 Port Pinout
RS-449 Cable Pinout
A
B
C
Signal
I/O
Signal Description
(37 pin male)
76
63
1
GND
-
Shield
47 66
14 33
2 21
SD(A) SD(B)
Output Output
Transmit Data (inverted) Transmit Data (non-inverted)
48 67
15 34
3 22
ST(A) ST(B)
Input Input
Transmit Signal Element Timing (inverted) Transmit Signal Element Timing (non-inverted)
5 23
49 68
16 35
4 23
TT(A) TT(B)
17 35
50 69
17 36
5 24
RS(A) RS(B)
Request to Send (inverted) Request to Send (non-inverted)
7 25
51 70
18 37
6 25
RD(A) RD(B)
Receive Data (inverted) Receive Data (non-inverted)
6 24
52 71
19 38
7 26
CS(A) CS(B)
Clear to Send (inverted) Clear to Send (non-inverted)
9 27
53 72
20 39
8 27
RT(A) RT(B)
Receive Signal Element Timing (inverted) Receive Signal Element Timing (non-inverted)
8 26
54 73
41 60
9 28
DM(A) DM(B)
Data Mode (inverted) Data Mode (non-inverted)
11 29
55 74
42 61
10 29
TR(A) TR(B)
Terminal Ready (inverted) Terminal Ready (non-inverted)
12 30
56 75
43 62
11 30
RR(A) RR(B)
Receiver Ready (inverted) Receiver Ready (non-inverted)
13 31
57 77
44 64
12 31
LL RL
Local Loopback Remote Loopback
10 14
59 78
46 65
13 32
RI TM
Incoming Call Test Mode
15 18
58
45
40
SG
Signal Ground
20
37
2 These pins are looped.
This cable converts the HSS X.21 3-Port module connector into three X.21 interfaces. You can use it for dial-up or leased lines.
X.21 Cable Pinout
(15 pin female)
Output
2 9
TA TB
RD(A)
RD(B)
4 11
RA RB
48 53
15 20
3 8
ST(A) RT(A)
6 6
SA SA
67 72
34 39
22 27
ST(B) RT(B)
13 13
SB SB
3 10
CA CB
5 12
IA IB
8
RS(A)
52
19
7
CS(A)
Input
56
43
11
RR(A)
RS(B)
71
38
26
CS(B)
75
62
30
RR(B)
This cable converts the HSS RS-232 3-Port module connector into three RS-232 interfaces. You can use it for dial-up or leased lines.
This cable ships with the module
RS-232 Port Pinout
RS-232 Cable Pinout
(25 pin male)
18
35
2
36
TD
output
Transmit Data
5
22
39
TXC
input
Transmit Signal Element Timing
15
13
46
TT
24
25
41
RTS
Request to Send
4
3
RD
Receive Data
9
42
CTS
Clear to Send
6
23
RXC
Receive Signal Element Timing
17
28
44
DSR
Data Set Ready
10
27
DTR
Data Terminal Ready
12
29
DCD
Receive Carrier Detect
16
33
49
LL
Local Loop-back
34
50
RL
Remote Loop-back
21
32
48
RI
Ring Indicate
14
31
47
TM
Test Mode
7 4
21 24
38 38
SG SG
- -
Signal Ground Signal Ground
This cable converts the HSS V.35 3-Port module connector into three V.35 interfaces. You can use this cable for dial-up or leased lines.
Table 8-1
Signal Name
Mnemonic
Pin Number
(+ side)
(- side)
Direction
--
Receive Timing
RT
in
DCE Available
CA
Loopback Request
LC
Send Timing
ST
DTE Available
TA
out
Terminal Timing
Loopback Circuit A
LA
Send Data
SD
Loopback Circuit B
LB
5 ancillary to DCE
14 - 18
39 - 43
5 ancillary from DCE
20 - 24
45 - 49