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C
ABLES
B-3
RJ-45 Port Pin Assignments
All LAN ports on the Barricade support automatic MDI/MDI-X
configuration. This means that the pin signals in use will depend
on whether the LAN port is operating in MDI or MDI-X mode.
However, the WAN port is configured only for MDI-X mode.
Pin
MDI Signal Name*
MDI-X Signal Name*
1
Transmit Data (TD+)
Receive Data (RD+)
2
Transmit Data (TD-)
Receive Data (RD-)
3
Receive Data (RD+)
Transmit Data (TD+)
6
Receive Data (RD-)
Transmit Data (RD-)
Pins 4, 5, 7 and 8 are not connected.
* The “+” and “-” signs represent the polarity of the wires that make
up each wire pair.
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C
ABLES
B-4
Serial Port Pin Assignments
The DB-9 serial port on the rear panel is used to connect the
Barricade to an ISDN TA or PSTN modem. The pin assignments
used to connect to this port are provided in the following tables.
Figure B-2.
DB-9 Serial Port Pin Numbers
DB-9 Port Pin Assignments
EIA
Circuit
CCITT
Signal
Description
Gateway’s
DB9 DTE
Pin #
PC DB9
DTE
Pin #
Modem
DB25
DCE Pin #
Signal
Direction
DTE-DCE
CF
109
DCD
(Data Carrier Detected)
1
1
8
<------
BB
104
RxD
(Received Data)
2
2
3
<------
BA
103
TxD
(Transmitted Data)
3
3
2
------>
CD
108.2
DTR
(Data Terminal Ready)
4
4
20
------>
AB
102
SG
(Signal Ground)
5
5
7
-------
CC
107
DSR
(Data Set Ready)
6
6
6
<------
CA
105
RTS
(Request-to-Send)
7
7
4
------>
CB
106
CTS
(Clear-to-Send)
8
8
5
<------
CE
125
RI
(Ring Indicator)
9
9
22
<------
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C
ABLES
B-5
Serial Port to 9-Pin COM Port on PC
Serial Port to 25-Pin DCE Port on Modem
Serial Port to 25-Pin DTE Port on PC
Barricade’s 9-Pin
Serial Port
CCITT Signal
PC’s 9-Pin COM
Port
1 DCD
-----------
DCD
------------
1
2 RXD
<---------
TXD
------------
3
3 TXD
-----------
RXD ---------->
2
4 DTR
-----------
DSR ---------->
6
5 SGND
-----------
SGND ----------
5
6 DSR
-----------
DTR
------------
4
7 RTS
-----------
CTS ----------->
8
8 CTS
<---------
RTS
-------------
7
9 RI
-----------
RI
---------------
9
Barricade’s 9-Pin
Serial Port
CCITT Signal
Modem’s 25-Pin
DCE Port
1
<---------
DCD
------------
8
2
<---------
RXD
------------
3
3
-----------
TXD ---------->
2
4
-----------
DTR ---------->
20
5
-----------
SGND ----------
7
6
<---------
DSR
------------
6
7
-----------
RTS ----------->
4
8
<---------
CTS
-------------
5
9
<---------
RI
---------------
22
Barricade’s 9-Pin
Serial Port
Null Modem
PC’s 25-Pin DTE
Port
1 DCD
8 DCD
2 RXD
3 TXD
3 TXD
2 RXD
4 DTR
20 DTR
5 SGND
7 SGND
6 DSR
6 DSR
7 RTS
4 RTS
8 CTS
5 CTS
9 RI
22 RI
1
1
2
3
3
2
4
8
5
20
6
7
7
4
9
5
20
6
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C
ABLES
B-6
Printer Port Pin Assignments
The DB-25 parallel port on the Barricade’s rear panel is used to
connect the Barricade to a printer. When a printer is attached to
this port, any PCs attached to the Barricade’s LAN ports can pass
files to the printer. The pin assignments used to connect to the
printer port are provided in the following table.
Figure B-3.
DB-25 Printer Port Pin Numbers
DB-25 Printer Port Pin Assignments
Pin
Signal Name
Direction
1
-Strobe
To printer
2
+Data 0
To printer
3
+Data 1
To printer
4
+Data 2
To printer
5
+Data 3
To printer
6
+Data 4
To printer
7
+Data 5
To printer
8
+Data 6
To printer
9
+Data 7
To printer
10
- ACK
To print server
11
+ Busy
To print server
12
+ Paper End
To print server
13
+ Select
To print server
14
- Auto Feed
No connection
15
- Error
To print server
16
- Init
To printer
17
- Select
No connection
18-25
GND
Ground
25
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C-1
A
PPENDIX
C
S
PECIFICATIONS
LAN Interface
10BASE-T/100BASE-TX
4 RJ-45 ports
WAN Interface
10BASE-T/100BASE-TX, 1 RJ-45 port
Serial, 1 RS-232 DB-9 connector
Printer Interface
Parallel
1 DB-25 printer port
Management
Web management
Advanced Features
Dynamic IP Address Configuration – DHCP, DNS
Firewall – Client privileges, hacker prevention and logging
Virtual Private Network – PPTP, L2TP, IPSec pass-through
Backup Internet Connection –
Dial-on-demand via secondary WAN port
Print server
Indicator Panel
LAN (Link, Activity), WAN (Link, Activity), Power
Dimensions
19.5 x 11.25 x 2.55 cm (7.68 x 4.43 x 1.00 in)
Weight
1.34 lbs (0.61 kg)
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