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NETBuilder Bridge/Router Pinout and Cable DiagramsIntroductionThe following document contains pinout and cable diagrams for the NETBuilder Bridge/Router product line. These diagrams include the following:
NETBuilder II Bridge/Router Console Port PinoutsThe NETBuilder II Bridge/Router contains two serial ports on the Communications Engine Card (CEC). The diagnostic port is used by 3Com engineering when developing and working on the product. The other serial interface on the CEC is the console port, which allows user access to the NETBuilder II bridge/router user interface. The following table contains the pinouts for that port.
Pin No. Signal Description
1 Data Carrier Detect
2 Receive Data
3 Transmit Data
4 Data Terminal Ready
5 Signal Ground
6 Data Set Ready
7 Request to Send
8 Clear to Send
9 Ring Indicator
NETBuilder II Bridge/Router Console Port to Terminal - Cable DiagramTo construct a cable that will attach a piece of data terminal equipment (DTE) such as a terminal or PC to the NETBuilder II console port, use the following cable diagram.
NETBuilder II To a DB-9 To a DB-25
DB-9 (female) Connector Connector
2 3 2
3 2 3
1 and 8 7 4
7 1 and 8 5 and 8
5 5 7
4 6 6
6 4 20
NETBuilder II Bridge/Router Console Port to Modem - Cable DiagramTo construct a cable that will attach a piece of data communications equipment (DCE), such as a modem, to the NETBuilder II Bridge/Router console port, use the following cable diagram.
NETBuilder II To a DB-9 To a DB-25
DB-9 (female) Connector Connector
1 1 8
2 2 3
3 3 2
4 4 20
5 5 7
6 6 6
7 7 4
8 8 5
9 9 22
NETBuilder Bridge/Router RS232 Pinout DiagramThe following table provides a pinout diagram for the NETBuilder Bridge/Router wide area network (WAN) interface.
Pin No. RS232 Name Signal Description
1 AA Chassis Ground
2 BA Transmit Data
3 BB Receive Data
4 CA Request to Send
5 CB Clear to Send
6 CC Data Set Ready
7 AB Signal Ground
8 CF Data Carrier Detect
15 DB Transmit Clock
17 DD Receive Clock
20 CD Data Terminal Ready
24 DA External Transmit Clock
NETBuilder II Bridge/Router HSS Module Pinout DiagramThe following table provides a pinout diagram for the NETBuilder II Bridge/Router High Speed Serial (HSS) WAN interface.
HSS Pin No. Signal Name V.35 Pin No./ID RS232 Pin No.
1 Chassis Ground A 1
2 TD 2
3 RD 3
4 RTS C 4
5 CTS D 5
6 DSR E 6
7 Signal Ground B 7
8 DCD F 8
9 RDA R
10 RDB T
11 unassigned
12 SCRA V
13 SCRB X
14 SDA P
15 TXCI 15
16 SDB S
17 RXCI 17
18 SCTEA U
19 SCTEB W
20 DTR H 20
21 SCTA Y
22 SCTB a
23 RXCO
24 TXCO 24
25 unassigned
NETBuilder II Bridge/Router HDWAN (3-Port HSS) Module Pinout DiagramThe following table provides a pinout diagram for the NETBuilder II Bridge/Router HDWAN (3-Port HSS) Module.
Port (A) Port (B) Port (C) Signal Input or Signal Pin
Output Description
57 46 35 GND Shield GND A
28 17 6 SDB output TX data,
non-inverted S
29 18 40 SDA output TX data,
inverted P
32 20 8 RDB input RX data,
non-inverted T
66 54 42 RDA input RX data,
inverted R
58 47 36 RTS output Request to
Send C
60 49 37 CTS input Clear to Send D
26 15 4 DSR input Data Set
(DCE) Ready E
24 13 1 DTR output Data Terminal
(DTE) Ready H
27 16 5 GND Signal GND B
61 50 38 DCD input Data Carrier
Detect F
34 22 10 SCTB input Transmit clock,
non-inverted AA
68 56 44 SCTA input Transmit clock,
inverted Y
33 21 9 SCRB input Receive clock,
non-inverted X
67 55 43 SCRA input Receive clock,
inverted V
25 14 2 LL output Local Loop
Back L
59 48 3 RL output Remote Loop
Back N
62 51 39 RI input Ring Indicator J
30 19 7 SCTEB output Ext. Transmit
clock,
non-inverted W
64 53 41 SCTEA output Ext. Transmit
clock,
inverted U
23 12 11 TM input Test Mode NN
65 52 45 GND Shield GND
31 63 NC not connected
NETBuilder II Bridge/Router RS449 to X.21 15-pin Adapter Cable DiagramThe following figure provides a cable diagram for a NETBuilder II Bridge/Router RS449 Module to X.21 15-pin Adapter Cable. Use this cable to connect an RS449 connector on the NETBuilder Remote Office or on the NETBuilder II HSS RS449 module to an x.21 DCE device.
NETBuilder II Bridge/Router RS449 to RS-530 Adapter Cable DiagramThe following figure provides a cable diagram for a NETBuilder II Bridge/Router RS449 Module to RS-530 Adapter Cable. Use this cable to connect an RS449 connector on the NETBuilder Remote Office or on the NETBuilder II HSS RS449 module to an x.21 DCE device. Pin assignments for connecting an RS449 female "D" connector and an RS-530 male transition cable.
Name Mnemonic RS449 Pin Pin Mnemonic RS-530 Name
Shield - 1 1 - Shield
Send Data SDA 4 2 BA (A) Transmitted Data
SDB 22 14 BA (B)
Receive Data RDA 6 3 BB (A) Received Data
RDB 24 16 BB (B)
Request to Send RSA 7 4 CA (A) Request to Send
RSB 25 19 CA (B)
Clear to Send CSA 9 5 CB (A) Clear to Send
CSB 27 13 CB (B)
Data Mode DMA 11 6 CC (A) DCE Ready
DMB 29 22 CC (B)
Terminal Ready TRA 12 20 CD (A) DTE Ready
TRB 30 23 CD (B)
Signal Ground SG 19 7 AB Signal Ground
Receiver Ready RRA 13 8 CF (A) Received Line
RRB 31 10 CF (B) Signal Detector
Send Timing STA 5 15 DB (A) Transmit Signal
STB 23 12 DB (B) Element timing
(DCE source)
Receive Timing RTA 8 17 DD (A) Receiver Signal
RTB 26 9 DD (B) Element timing
(DCE source)
Terminal Timing TTA 17 24 DA (A) Transmit Signal
TTB 35 11 DA (B) Element Timing
(DTE source)
NETBuilder II Bridge/Router RS449 Module Pinout DiagramThe following table provides a pinout diagram for the NETBuilder II Bridge/Router RS449 Module. Note: RS449 is the specification for the 37-pin physical connector while RS422 is the electrical specification for balanced signaling. Our interface does RS422 signaling on an RS449 physical interface.
Pin No. Signal Signal Description
1 Shield Chassis Ground
2 SI Signal Rate Indicator
3 spare
4 SD (A) Send Data
5 ST (A) Send Timing
6 RD (A) Receive Data
7 RS (A) Request to Send
8 RT (A) Receive Timing
9 CS (A) Clear to Send
10 LL Local Loopback
11 DM (A) Data Mode
12 TR (A) Terminal Ready
13 RR (A) Receiver Ready
14 RL Remote Loopback
15 IC Incoming Call
16 SF/SR+ Select Frequency/Signal Rate Selector
17 TT (A) Terminal Timing
18 TM Test Mode
19 SG Signal Ground
20 RC Receive Common
21 spare
22 SD (B) Send Data
23 ST (B) Send Timing
24 RD (B) Received Data
25 RS (B) Request to Send
26 RT (B) Receive Timing
27 CS (B) Clear to Send
28 IS Terminal In Service
29 DM (B) Data Mode
30 TR (B) Terminal Ready
31 RR (B) Receiver Ready
32 SS Select Standby
33 SQ Signal Quality
34 NS New Signal
35 TT (B) Terminal Timing
36 SB Standby Indicator
37 SC Send Common
NETBuilder II Bridge/Router HSSI (High Speed Serial Interface) Module PinoutsThe following table provides a pinout diagram for the NETBuilder II Bridge/Router HSSI Module.
Signal Name Mnemonic Pin No. Pin No. Direction
(+side) (- side)
Signal Ground SG 1 26 -
Receive Timing RT 2 27 in
DCE Available CA 3 28 in
Receive Data RD 4 29 in
Loopback Request LC 5 30 in
Send Timing ST 6 31 in
Signal Ground SG 7 32 -
DTE Available TA 8 33 out
Terminal Timing TT 9 34 out
Loopback Circuit A LA 10 35 out
Send Data SD 11 36 out
Loopback Circuit B LB 12 37 out
Signal Ground SG 13 38 -
5 ancillary to DCE 14-18 39-43 out
Signal Ground SG 19 44 -
5 ancillary to DCE 20-24 45-49 in
Signal Ground SG 25 50 -
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