Contents:

- Straight 10/100BaseT Ethernet Cable
- Crossed 10/100BaseT Ethernet Cable
- EtherPAD Configuration Cable
- E88 Configuration Cable
- Configuration Cable
- Crossed Serial Cable
- Full Crossed Serial Cable
- Null-Modem Crossed Serial Cable
- Alternative Null-Modem Crossed Serial Cable
- Straight/Modem Serial Cable
- Two-Wire Modem Serial Cable
- EtherPAD Duo/Lite

Straight 10BaseT Ethernet Cable
When testing, it may be convenient to connect the EtherPAD to a Computer's network card with the use of a hub. This can be achieved using a straight network cable wired as follows:

Hub (RJ-45)				EtherPAD (RJ-45)
1	TX+	White	Orange	1	TX+	White	Orange
2	TX-	Orange		2	TX-	Orange
3	RX+	White	Green	3	RX+	White	Green
6	RX-	Green		6	RX-	Green

Crossed 10BaseT Ethernet Cable
When testing, it may be convenient to connect the EtherPAD directly to a computer's network card without the use of a hub. This can be achieved using a crossed network cable wired as follows:

PC (RJ-45)				EtherPAD (RJ-45)
1	TX+	White	Orange	3	RX+	White	Green
2	TX-	Orange		6	RX-	Green
3	RX+	White	Green	1	TX+	White	Orange
6	RX-	Green		2	TX-	Orange

EtherPAD Configuration Cable
In order to configure the EtherPAD, a serial cable is required that connects a computer to the EtherPAD's dedicated configuration port rather than the usual application port. This 3-wire crossed cable should be connected as shown below, using either a 9-pin or 25-pin connector for the computer's serial port.

PC (9-pin DB-F)		PC (25-pin DB-F)		EtherPAD (9-pin DB-M)
3	TD	2	TD	2	RXDCONC
2	RD	3	RD	3	TXDCONC
5	GND	7	GND	5	GND

E88 Configuration Cable
In order to configure the E88, a dedicated serial cable is required that connects a computer to the E88's dedicated configuration port rather than the usual application port. This 3-wire crossed cable should be connected as shown below, using either a 9-pin or 25-pin connector for the computer's serial port.

PC (9-pin DB-F)		PC (25-pin DB-F)		EtherPAD (9-pin DB-M)
3	TD	2	TD	23	CNF_RD
2	RD	3	RD	24	CNF_TD
5	GND	7	GND	7	GND
Optional short (loop-back test)				2	TD
				3	RD

Note: In order to simplify testing of the E88's operation, pins 2 and 3 on the E88 can optionally be shorted together as indicated to implement a simple loop-back test. This is not required to configure the E88. This short can be made on a DB-25 female connector and kept as a test aid.

Configuration Cable
Configuration and management using a custom serial configuration cable.

PC (9-pin DB-F)		PC (25-pin DB-F)		DinPAD (RJ45-8)		Duo (RJ12-6)
3	TD	2	TD	5	RDconf	5	RDconf
2	RD	3	RD	4	TDconf	3	TDconf
5	GND	7	GND	6	GND	4	GND

Crossed Serial Cable
In order for a computer (or other device) to communicate with the EtherPAD's application port, a simple 3-wire crossed cable is usually sufficient. (If hardware-based handshaking is required then see Full Crossed Serial Cable.) The three wires should be connected as follows, using either a 9-pin or 25-pin connector for the computer's serial port.

PC (9-pin DB-F)		PC (25-pin DB-F)		Lite/TelePAD (9-pin DB-M)		EtherPAD (25-pin DB-M)		DinPAD (RJ45-10)
2	RD	3	RD	3	TD	2	TD	5	TD
3	TD	2	TD	2	RD	3	RD	6	RD
5	GND	7	GND	5	GND	7	GND	7	GND

Full Crossed Serial Cable
In order for a computer (or other device) to communicate with the EtherPAD's application port, a simple 3-wire crossed cable is usually sufficient. (If hardware-based handshaking is required then see Full Crossed Serial Cable.) The three wires should be connected as follows, using either a 9-pin or 25-pin connector for the computer's serial port.

PC (9-pin DB-F)		PC (25-pin DB-F)		Lite/TelePAD (9-pin DB-M)		EtherPAD (25-pin DB-M)		DinPAD (RJ45-10)
2	RD	3	RD	3	TD	2	TD	5	TD
3	TD	2	TD	2	RD	3	RD	6	RD
4	DTR	20	DTR	6	DSR	6	DSR	2	DSR
5	GND	7	GND	5	GND	7	GND	7	GND
6	DSR	6	DSR	4	DTR	20	DTR	9	DTR
7	RTS	4	RTS	8	CTS	5	CTS	8	CTS
8	CTS	5	CTS	7	RTS	4	RTS	3	RTS

Null-Modem Crossed Serial Cable
When attempting to use a simple Crossed Serial Cable to connect a DTE class device (such as a computer) to the EtherPAD's application port, some devices will not transmit any data unless their DSR and CTS and, in some cases CD, signals are asserted.

PC (9-pin DB-F)		PC (25-pin DB-F)		TelePAD (9-pin DB-M)		EtherPAD (25-pin DB-M)		DinPAD (RJ45-10)
2	RD	3	RD	3	TD	2	TD	5	TD
3	TD	2	TD	2	RD	3	RD	6	RD
4	DTR	20	DTR	6+1	DSR+CD	6+8	DSR+CD	2+10	DSR+CD
5	GND	7	GND	5	GND	7	GND	7	GND
6+1	DSR+CD	6+8	DSR+CD	4	DTR	20	DTR	9	DTR
7	RTS	4	RTS	8	CTS	5	CTS	8	CTS
8	CTS	5	CTS	7	RTS	4	RTS	3	RTS

Alternative Null-Modem Crossed Serial Cable
If the Null-Modem crossed cable above does not work in your application you can simply drive the required signals (DSR/DTR, CTS and CD) using the device's own DTR signal. In this the three wires should be connected as follows, using either a 9-pin or 25-pin connector for the computer's serial port, and the jumpers, highlighted in the table below, should be added, like colour to like colour.

PC (9-pin DB-F)		PC (25-pin DB-F)		Lite/TelePAD (9-pin DB-M)		EtherPAD (25-pin DB-M)		DinPAD (RJ45-10)
2	RD	3	RD	3	TD	2	TD	5	TD
3	TD	2	TD	2	RD	3	RD	6	RD
5	GND	7	GND	5	GND	7	GND	7	GND
4	DTR	20	DTR
6	DSR	6	DSR
1	CD	8	CD
8	CTS	5	CTS

Straight/Modem Serial Cable
In order to connect the EtherPAD's application port to a DCE class device (such as a modem) a straight serial cable should normally be used wired as follows, using a 9-pin, 15-pin or 25-pin male connector for the DCE class device.

DCE (15-pin DB-M)		DCE (9-pin DB-M)		DCE (25-pin DB-M)		Lite/TelePAD (9-pin DB-M)		EtherPAD (25-pin DB-M)		DinPAD (RJ45-10)
11	RI	1	RI	8	RI	1	RI	22	RI	1	RI
13	RD	2	RD	3	RD	2	RD	3	RD	6	RD
12	TD	3	TD	2	TD	3	TD	2	TD	5	TD
10	DTR	4	DTR	20	DTR	4	DTR	20	DTR	9	DTR
1+8+15	GND	5	GND	7	GND	5	GND	7	GND	7	GND
3	DSR	6	DSR	6	DSR	6	DSR	6	DSR	2	DSR
4	RTS	7	RTS	4	RTS	7	RTS	4	RTS	3	RTS
5	CTS	8	CTS	5	CTS	8	CTS	5	CTS	8	CTS
6	CD	9	CD	22	CD	9	CD	8	CD	10	CD

Two-Wire Modem Serial Cable
This cable is used to connect the EtherPAD's application port to a DCE class device (such as a modem) when hardware handshaking is not required. In this case the cable should be wired as follows, using a 9-pin, 15-pin or 25-pin male connector for the DCE class device. The pins, highlighted in the table below, should be jumpered, like colour to like colour.

DCE (15-pin DB-M)		DCE (9-pin DB-M)		DCE (25-pin DB-M)		TelePAD (9-pin DB-M)		EtherPAD (25-pin DB-M)		DinPAD (RJ45-10)
11	RI	1	RI	8	RI	1	RI	22	RI	1	RI
13	RD	2	RD	3	RD	2	RD	3	RD	6	RD
12	TD	3	TD	2	TD	3	TD	2	TD	5	TD
10	DTR	4	DTR	20	DTR	4	DTR	20	DTR	9	DTR
1+8+15	GND	5	GND	7	GND	5	GND	7	GND	7	GND
3	DSR	6	DSR	6	DSR	6	DSR	6	DSR	2	DSR
4	RTS	7	RTS	4	RTS	7	RTS	4	RTS	3	RTS
5	CTS	8	CTS	5	CTS	8	CTS	5	CTS	8	CTS
6	CD	9	CD	22	CD	9	CD	8	CD	10	CD

EtherPAD Duo/Lite

PIN	RS232			RS485
		Signal	Description		Signal	Description
1	DCD	In	Data Carrier Detect	DCD	In	Data Carrier Detect
2	RxD	In	Receive Data	RxD-	In	Receive Data Negative
3	TxD	Out	Transmit Data	TxD-	Out	Transmit Data Negative
4	DTR	Out	Data Terminal Ready	DTR	Out	Data Terminal Ready
5	GND	-	Ground	GND	-	Ground
6	DSR	In	Data Set Ready	DSR	In	Data Set Ready
7	RTS	Out	Request to Send	TxD+	Out	Transmit Data Positive
8	CTS	In	Clear to Send	RxD+	In	Receive Data Positive
9	RI	In	Ring Indicator	RI	In	Ring Indicator