Specifications
Table Of Contents
- EIA-232 asynchronous interface
- Physical cable characteristics
- Grounding requirements
- Environmental requirements
- Data rate information
- Data rate vs. cable length recommendations
- Resolving transmission errors
- EIA-232: DB-25 to DB-25
- Simple Terminal/Printer Cable
- Terminal/printer cable with DTR handshaking
- Terminal/printer cable with RTS/CTS handshaking
- Terminal/printer cable for software (XON/XOFF) or hardware (DTR) handshaking
- EIA-232: RJ-45 to DB-25
- Part numbers for RJ-45 to DB-25 cable adapters:
- Part numbers for RJ-45 to DB-9 cable adapters:
- Part numbers for RJ-45 to RJ-45 8-pin crossover cable for Cisco & Sun Netra:
- Simple software handshaking terminal/printer cable (RJ-11)
- Terminal/Printer Cable with DTR Handshaking
- Terminal/printer cable with DTR handshaking
- ALTPIN terminal/printer cable for software (XON/XOFF) or hardware (RTS/CTS) handshaking
- Terminal/printer cable for software (XON/XOFF) or hardware (RTS/CTS) handshaking
- RJ-45 8-pin to modem (ALTPIN option)
- 8-Wire modem cable supporting ALTPIN option
- RJ-45 to DB-25 modem cable (10-wire)’
- RJ-45 to RJ-45 8-pin crossover cable
- Pin positions for RJ-45
- EIA-422 asynchronous interface
- Physical cable characteristics
- Interface signaling
- Grounding requirements
- EIA-485 asynchronous interface
- Physical cable characteristics
- Interface signaling
- Grounding requirements
- Termination information
- RJ-45 pinouts
- DB-9 pinouts
- RJ-45 8-pin EIA-232/ 22/ 485 PortServer TS 8/16 MEI
- DataFire® 2000 sync adapter
- Features
- Recommendations
- X.21, male DB-15 connector
- V.35, male 34-pin connector
- EIA-232 / V.28 (V.24), male DB-25 connector
- EIA-530/422, male DB-25 connector
- Pinout reference
- Asynchronous cabling
- Cable wall mount options
- Cross reference cable to order numbers and ID numbers
- EIA 232 Information
- RS-232 flow control primer
- Fiber optic cable specifications and source
- Loopback connector pinouts
- EtherLite RJ-45 to DB-25M modem adapter
- EtherLite RJ-45 to DB-25M 4-Wire duplex cable (RS-422)
- EtherLite RJ-45 to DB-25M console adapter
- EtherLite RJ-45 to DB-9F console adapter
- EtherLite and SCSI Terminal Server RJ-45 to DB-9M modem cable
- EtherLite and SCSI Terminal Server RJ-45 to DB-9F terminal emulator cable
- EtherLite and SCSI Terminal Server RJ-45 to DB-25M modem cable
- EtherLite RJ-45 8-pin to DB-25M DTE modtap adapter
- EtherLite RJ-45 8-pin to DB-25M DCE modtap adapter
- EtherLite RJ-45 to DB-9F DCE modtap adapter
- EtherLite and SCSI Terminal Server RJ-45 to RJ-45 Cisco console adapter
- EtherLite and SCSI Terminal Server RJ-45 to DB-25M terminal printer cable
- Digi One, PortServer TS, and Multi-Port Serial Cards RJ-45 to DB-9F cable adapter
- Digi One, PortServer TS, and Multi-Port Serial Cards RJ-45 to DB-25M console adapter
- Digi One, PortServer TS, and Multi-Port Serial Cards RJ-45 to DB-25F cable adapter
- Digi One, PortServer TS, and Multi-Port Serial Cards RJ-45 to DB-25M modem adapter
- Digi One, PortServer TS, and Multi-Port Serial Cards RJ-45 to DB-9M modem adapter
- Digi One, PortServer TS, and Multi-Port Serial Cards RJ-45 to DB-25M printer adapter
- Digi CM RJ-45 to DB-9F DTE RS-232 crossover cable
- Digi CM RJ-45 to DB-25M modem adapter
- Digi CM RJ-45 to DB-9F console adapter
- Digi CM RJ-45 to DB-25M console adapter
- Digi CM RJ-45 to DB-25F console adapter
- Digi CM RJ-45 to DB-9M modem adapter
- Digi CM RJ-45 to DB-25M (DCE RS 232) straight-through cable
- Digi CM EIA-232 RJ-45 to DB-25M (DTE RS 232) crossover cable
- Digi CM RJ-45 to RJ-45 Sun Netra or Cisco crossover cable
- Digi CM RJ-45 to Sun Mini Din cable
- Async conversion RJ-XX to DB-XX
- Cable vendors
- DataFire Sync 2000 SCSI pinouts
- Digi One EM DB-9 connector pinouts
- Digi One IA RealPort EIA-232 DB-9 connector pinout
- Digi One EM EIA-232 DB-9 and terminal block pinout
- Digi One SP DB-9 pinout
- Async EIA-422 DB-9 connector pinout
- Async EIA-422 DB-25 pinout
- Async RJ-45 to RJ-45 crossover cable - for cross-connecting Digi asynchronous ports together
- DB-25F to RJ-45 Cisco console cable adapter
- SCSI Terminal Server DB-25M to RJ-45 Cisco console cable adapter
- Difference between DTE and DCE
- DB-9F to RJ-45 3COM Total Control/COMPAQ Microcom modem cable
- SCSI Terminal Server DB-25M to RJ-45 3COM Total Control/COMPAQ Microcom modem cable
- DB-25F to RJ-45 3COM Total Control/COMPAQ Microcom modem cable
- RJ-45 to RJ-45 (Altpin on) 3 COM Total Control/COMPAQ Microcom modem cable
- RJ-45 10-pin to RJ-45 3 COM Total Control/Compaq Microcom modem cable
- DB-9F to DB-9M modem cable
- DB-9F to DB-25M modem cable
- DB-25F to DB-9M modem cable
- DB-25F to DB-25M modem cable
- SCSI Terminal Server DB-25M to DB-9M modem cable
- RJ-45 (Altpin on) to DB-9M modem cable
- RJ-45 (Altpin on) to DB-25M modem cable
- RJ-45 10-pin to DB-9M modem cable
- RJ-45 10-pin to DB-25M modem cable
- DB-9F to DB-9F terminal emulator cable
- DB-9F to DB-25F terminal emulator cable
- DB-25F to DB-9F terminal emulator cable
- DB-25F to DB-25F terminal emulator cable
- SCSI Terminal Server DB-25M to DB-9F terminal emulator cable
- SCSI Terminal Server DB-25M to DB-25F terminal emulator cable
- RJ-11 6-pin/4-wire to DB-9F terminal emulator cable
- RJ-11 6-pin/4-wire to DB-25F terminal emulator cable - software flow control only
- RJ-11 6-pin to DB-9F terminal emulator cable
- RJ-11 6-pin to DB-25F PC terminal emulator cable
- RJ-45 4-wire to DB-9F terminal emulator cable - software flow control only
- RJ-45 4-wire to DB-25F terminal emulator cable - software flow control only
- RJ-45 (Altpin on) to DB-9F terminal emulator cable
- RJ-45 (Altpin on) to DB-25F terminal emulator cable
- RJ-45 to DB-9F terminal emulator cable
- RJ-45 10-pin to DB-9F terminal emulator cable
- RJ-45 10-pin to DB-25F terminal emulator cable
- RJ-45 (Altpin On) to RJ-45 Cisco console adapter
- V.35 to DB-25M cabling
- V.35 pinout
- X.21 V.11 to DB-15 cable pinout
- Digi AccelePort Xp and NEO HD-68-pin Ultra SCSI connector
- Sync V.24 DB-25 connector pinout
- EIA 422 DB-25 pinouts for Sync boards
- Sync 2000 single-port V.36/EIA-449 pinout
- DB-9F to DB-9M terminal/printer cable
- DB-9F to DB-25M terminal/printer cable
- DB-25F to DB-9M terminal/printer cable
- DB-25F to DB-25M terminal/printer cable
- SCSI Terminal Server DB-25M to DB-9M terminal/printer cable
- SCSI Terminal Server DB-25M to DB-25M terminal/printer cable
- RJ-11 6-pin/4-wire to DB-9M terminal/printer cable
- RJ-11 6-pin/4-wire to DB-25M terminal/printer cable
- RJ-11 6-pin to DB-9F terminal/printer cable
- RJ-11 6-pin to DB-25M terminal/printer cable
- RJ-45 4-wire to DB-9M terminal/printer cable - software flow control only
- RJ-45 4-wire to DB-25M terminal/printer cable
- RJ-45 (Altpin on) to DB-9M terminal/printer cable
- RJ-45 to DB-25M terminal/printer cable
- RJ-45 to DB-9M terminal/printer cable
- RJ-45 10-pin to DB-9M terminal/printer cable
- RJ-45 10-pin to DB-25M terminal/printer cable
Chapter 4 EIA-232: DB-25 to DB-25 11
Digi DB-25 connector pin assignments
DB-25 software handshaking (XON/XOFF) cable
The following three-wire cable is often sufficient for a terminal, printer, or
other DTE device configured for software flow control.
Simple Terminal/Printer Cable
This cable is a three-wire null modem cable. Transmitted data on one end
of the cable is connected to received data at the other end, and vice versa.
The male DB-25 end can be plugged directly into most serial terminals and
printers without any adapters. The female DB-25 end plugs directly into
any Digi DB-25 serial port.
Chapter 2
EIA-232: DB-25 to DB-25
Signal Description DTE use Pin #
GND Chassis Ground N/A Shell
TxD Transmitted Data Output 2
RxD Received Data Input 3
RTS Request to Send Output 4
CTS Clear to Send Input 5
DSR Data Set Ready Input 6
SG Signal Ground reference 7
DCD Data Carrier Detect Input 8
DTR Data Terminal Ready Output 20
RI Ring Indicator Input 22
DB-25 female
(Digi end)
DB-25 male
(peripheral)
Signal Pin Pin Signal
TxD 2 connected to 3 RxD
RxD 3 connected to 2 TxD
SG 7 connected to 7 SG
GND shell connected to (via shield) shell GND