BB ELECTRONICS CATALOG (2010)

Cables & Connectors
Industrial
Category
5e & 6
Standard
& USB
Fiber Optic
Null Modems,
Reversers,
Testers
Gender Reversers
Convert ports: male to female, female to male
• Convert a female port to a male port or a male port to a female port
• Offered for DB9 and DB25 connector interfaces with gold plated contacts for high reliability
• 1.9 cm (.75 in) thick to fit into tight spaces
Male Female
to Male to Female Pins 1-9 10-19 20-49 50-99 100+
232SGM 232SGF 25 $9.00 8.55 8.10 7.88 7.65
9SGM 9SGF 9 $9.00 8.55 8.10 7.88 7.65
Null Modem Adapters
Connect devices with similar
RS-232 ports; Fix TD/RD
reversals
Features – DB25 null modems
• Interconnect devices with similar RS-232 ports
• Reverse Pin 2 (Transmit Data) and Pin 3 (Receive Data)
• Many popular configurations (see diagram)
Features – DB9 null modem
• Ideal for port-powered converters (see pages 10-11)
• Connect two devices with similar DCE 232 ports
• Connects TD to RD, DTR to DSR and RTS to CTS
• Transfers port power from the host to the peripheral
Model No. Description Price
MFNM25 Null Modem Adapter – DB25 Male / DB25 Female $9.00
MMNM25 Null Modem Adapter – DB25 Male / DB25 Male 9.00
MF23R25 Pin 2 to Pin 3 Reverser – DB25 Male / DB25 Female 9.00
MFDTE25 DCE to DTE Port Reverser – DB25 Male / DB25 Female 9.00
MMNM9 Null Modem Adapter – DB9 Male / DB9 Male 9.00
LED Mini Tester
Know which RS-232 data lines are active
This RS-232 mini tester is designed to connect in series with any
RS-232 interface. Bright red or green LED signals clearly show
which lines are active. The LEDs’ color indicates negative or
positive voltage (red meaning negative, green meaning positive).
Mini testers are used to check the interface for failures and to
help identify the equipment that has failed. The tester may be
left in the line permanently. It is transparent to data transfer.
Seven LEDs indicate the status of the following lines: TD, RD,
RTS, CTS, DSR, DTR, and CD. Model 9PMTT has male and
female DB9 connectors.
Dimensions: 2.0 x 2.14 x .63 in (5.0 x 5.4 x 1.6 cm)
Model No. Description Price
9PMTT 9-pin mini tester $44.00
RS-232 Breakout Box
LED display monitors signals
Reconfigure your RS-232 interfaces with this LED display
breakout box Test and rewire your RS-232 interfaces with this
portable, pocket-size BreakOut Box. It provides access to all 25
conductors of the RS-232/V.24 interface between the data
terminal and data communications equipment. The LEDs
monitor the status of ten primary signals: TD(2), RD(3), RTS(4),
CTS(5), DSR(6), CD(8), TC(15), RC(17), DTR(20), ETC(24), and
two additional LEDs for spares.
Twenty-four miniature switches allow all interface conductors
(except frame ground on pin 1) to be individually interrupted
for isolated testing and observation of terminal and modem
signals. Small jumper cables are provided to allow cross
connection of signal lines. DB25M on one end, DB25F on the
other end.
Model No. Description Price
BREAK-1 RS-232 breakout box $39.00
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www.bb-elec.com
815.433.5100