Cables
-
C20 through C21
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Cables for Gateway 20 through 21
PAGE 2
C20 –C21
Port
Cable Description
Cable Order
Number
Table
Serial
DE-9M RS232 DTE async
(Comport)
9F to 9M DCE Cable 6foot
9F to 25M DCE Cable 6foot
9F to 9F Straight Gender Changer
C/9SF-9M-DCE-6’
C/9SF-25M-DCE-6’
C/9FF-XGENDER
Pg. 3
Pg. 3
Pg. 4
Pg. 4
25F to 25F Straight Gender Changer C/25FF-XGENDER
LAN
RJ-45 Ethernet
RJ-45 Straight
RJ-45 Crossed
N/A
Pg. 5
Pg. 5
C/CAT5-CROSS
Modem
RJ-11 Dial-Tone async
RJ-11 Straight
N/A
Pg. 6
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Cables for Gateway 20 through 21
PAGE 3
9F to 9M/F (DCE)
This table lists the required RS-232 wiring required to provide a DCE interface for a
Gateway Comm. Port. The pins should be connected from one connector to the other
using the transpositions indicated. This cable is used for modem emulation.
9-Pin Female to 9-Pin Male
DIRECTION
To JBM Device
To Async Device
1 tied to 6
Å
Å
Æ
Æ
GND
-
4
3
2
2
3
4
5
-
6 tied to 8
5
-
7
8
-
Æ
Å
-
1
7
-
Converts Com Port to DCE
Units Supported
• C20
JBM Electronics Part Number: C/9SF-9M-DCE-6’
9F to 25M/F (DCE)
This table lists the required RS-232 wiring required to provide a DCE interface for a
Gateway Comm. Port. The pins should be connected from one connector to the other
using the transpositions indicated. This cable is used for modem emulation.
9-PIN FEMALE TO 25-PIN MALE
DIRECTION
JBM Device
Async Device
1 tied to 6
Å
Å
Æ
Æ
GND
-
20
2
3
2
3
4
5
-
5 tied to 6
7
-
7
8
-
Æ
Å
8
4
-
Converts Com Port to DCE
Units Supported
• C20
JBM Electronics Part Number: C/9SF-25M-DCE-6’
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Cables for Gateway 20 through 21
PAGE 4
25F to 25F Gender Changer
This is used to change a 9-pin male end connector to female.
Units Supported
• C20
JBM Electronics Part Number: C/9FF-XGENDER
25F to 25F Gender Changer
This is used to change a 25-pin male end connector to female.
Units Supported
• C20
JBM Electronics Part Number: C/25-XGENDER
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Cables for Gateway 20 through 21
PAGE 5
RJ-45 Straight
This table lists the Ethernet pins used in the Ethernet Port ETH0. For a straight-wired
connection the pins should be connected from one connector to the other without
transpositions or other wiring changes.
TABLE C STRAIGHT 10/100BASET
PIN
1
DESCRIPTION
TD+
2
TD-
3
RD+
4
-
5
-
6
RD-
7
8
-
-
Used for HUB or Switch
Units Supported
• C20
• C21
JBM Electronics Part Number: N/A
RJ-45 Crossed
This table lists the required Crossed-Wired Ethernet wiring required to provide cable
connection to the Gateway and a local PC. The pins should be connected from one
connector to the other using the transpositions indicated.
TABLE D CROSSED 10/00BASET
CONNECTOR A CONNECTOR B
1
2
3
-
3
6
1
-
-
-
6
-
2
-
-
-
Used for direct PC connection
Units Supported
• C20
• C21
JBM Electronics Part Number: C/CAT5-CROSS
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Cables for Gateway 20 through 21
PAGE 6
RJ-11 Straight
This table lists the required pins used in the Modem cable used to connect the Gateways
to an asynchronous modem. Pins should be connected from one RJ-11 connector to the
other without transpositions or other wiring changes.
RJ-11 MODEM CABLE
PIN
1
DESCRIPTION
Unused
2
Tip
4
5
Ring
Unused
Used for connecting a modem to the C21
Units Supported
• C21
JBM Electronics Part Number: N/A
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