Cable and Ethernet Specifications        B

• Male-to-male null modem cable-connects a data terminal equipment (DTE) device (terminal or PC) to the C0 port (See page B-2.)

• Male-to-male straight-through RS-232 cable-connects a data communications equipment (DCE) device (modem) to the C0 port (See page B-3.)

• High-density 68-pin cable-connect modems to the high density ports on the PortMaster 25 (See page B-4.)

• High-density 50-pin cable that splits into 50-pin connectors-connects U.S. Robotics Quad modems to a PortMaster 25 (See page B-7.)

• RS-232 cable-connects external modems to an asynchronous ports
  (See page B-10.)

• V.35 cable-connects a T1/E1 line to a W1 port (See page B-11.)

• X.21 cable-connects a T1/E1 line to a W1 port (See page B-12.)

• RS-530 cable-connect a T1/E1 line to a W1 port (See page B-13.)

• Category 5 twisted pair cable for the S/T interface-connects an ISDN BRI line to the S/T interface (See page B-14.)

• Category 5 twisted pair cable for the U interface--connects an ISDN BRI line to the U interface (See page B-14.)

• High-density 10-pin cable for the U interface-connects all four BRI ports on the U interface to a punchdown block via the high density (HD) port (See page B-15.)

• Ethernet interface specifications. (See page B-16.)

Male-to-Male Null Modem Cable

 

Table B-1 Male-to-Male Null Modem Cable Pinout

PortMaster Serial Port (C0)				Terminal Serial Port
DB-25 (DTE)	Signal	Definition	Direction to or from the PortMaster	DB-25 (DTE) Pin	DB-9 (DTE) Pin	Signal
2	TXD	Transmit Data	Output	3	2	RXD
3	RXD	Receive Data	Input	2	3	TXD
4	RTS	Request to Send	Output	5	8	CTS
5	CTS	Clear to Send	Input	4	7	RTS
6, 8	DCD	Data Carrier Detect	Input	20	4	DTR
7	GND	Signal Ground		7	5	GND
20	DTR	Data Terminal Ready	Output	6, 8	6, 1	DCD

Male-to-Male Straight-Through RS-232 Cable

 

Table B-2 Straight-through Cable Pinout

PortMaster Serial Port (C0)				Terminal Serial Port
DB-25 (DTE)	Signal	Definition	Direction to or from the PortMaster	DB-25 (DCE) Pin	DB-9 (DCE) Pin	Signal
2	TXD	Transmit Data	Output	2	3	TXD
3	RXD	Receive Data	Input	3	2	RXD
4	RTS	Request to Send	Output	4	7	RTS
5	CTS	Clear to Send	Input	5	8	CTS
6	DSR	Data Set Ready		6	6	DSR
7	GND	Signal Ground		7	5	GND
8	DCD	Data Carrier Detect	Input	8	1	DCD
20	DTR	Data Terminal Ready	Output	20	4	DTR

High-Density 68-Pin Cable

To order this cable from Lucent, specify product code DC-8DB.

 

Table B-3 High-Density 68-Pin-to-Eight DB-25 Cable-PM-25 only

Port	Signal	Definition	68-Pin Connector Pin	RS-232 Cable	DSub (male) Pin
1	RTS	Request to Send	2	1	4
	DTR	Data Terminal Ready	36	1	20
	TXD	Transmit Data	3	1	2
	SGND	Signal Ground	37	1	7
	DSR	Data Set Ready	4	1	6
	RXD	Receive Data	38	1	3
	DCD	Data Carrier Detect	5	1	8
	CTS	Clear to Send	39	1	5
2	RTS	Request to Send	6	2	4
	DTR	Data Terminal Ready	40	2	20
	TXD	Transmit Data	7	2	2
	SGND	Signal Ground	41	2	7
	DSR	Data Set Ready	8	2	6
	RXD	Receive Data	42	2	3
	DCD	Data Carrier Detect	9	2	8
	CTS	Clear to Send	43	2	5
3	RTS	Request to Send	10	3	4
	DTR	Data Terminal Ready	44	3	20
	TXD	Transmit Data	11	3	2
	SGND	Signal Ground	45	3	7
	DSR	Data Set Ready	12	3	6
	RXD	Receive Data	46	3	3
	DCD	Data Carrier Detect	13	3	8
	CTS	Clear to Send	47	3	5
4	RTS	Request to Send	14	4	4
	DTR	Data Terminal Ready	48	4	20
	TXD	Transmit Data	15	4	2
	SGND	Signal Ground	49	4	7
	DSR	Data Set Ready	16	4	6
	RXD	Receive Data	50	4	3
	DCD	Data Carrier Detect	17	4	8
	CTS	Clear to Send	51	4	5
5	RTS	Request to Send	18	5	4
	DTR	Data Terminal Ready	52	5	20
	TXD	Transmit Data	19	5	2
	SGND	Signal Ground	53	5	7
	DSR	Data Set Ready	20	5	6
	RXD	Receive Data	54	5	3
	DCD	Data Carrier Detect	21	5	8
	CTS	Clear to Send	55	5	5
6	RTS	Request to Send	22	6	4
	DTR	Data Terminal Ready	56	6	20
	TXD	Transmit Data	23	6	2
	SGND	Signal Ground	57	6	7
	DSR	Data Set Ready	24	6	6
	RXD	Receive Data	58	6	3
	DCD	Data Carrier Detect	25	6	8
	CTS	Clear to Send	59	6	5
7	RTS	Request to Send	26	7	4
	DTR	Data Terminal Ready	60	7	20
	TXD	Transmit Data	27	7	2
	SGND	Signal Ground	61	7	7
	DSR	Data Set Ready	28	7	6
	RXD	Receive Data	62	7	3
	DCD	Data Carrier Detect	29	7	8
	CTS	Clear to Send	63	7	5
8	RTS	Request to Send	30	8	4
	DTR	Data Terminal Ready	64	8	20
	TXD	Transmit Data	31	8	2
	SGND	Signal Ground	65	8	7
	DSR	Data Set Ready	32	8	6
	RXD	Receive Data	66	8	3
	DCD	Data Carrier Detect	33	8	8
	CTS	Clear to Send	67	8	5

High-Density 50-Pin Cable

 Table B-4 gives pinout information for this cable.  

Table B-4 High-Density 50-Pin Cable

Quad	Port	Signal	Definition	68-Pin Number	Connection	Pin
A	1	RTS	Request to Send	2	1	3
		DTR	Data Terminal Ready	36	1	5
		TXD	Transmit Data	3	1	1
		SGND	Signal Ground	37	1	7
		DSR	Data Set Ready	4	1	11
		RXD	Receive Data	38	1	2
		DCD	Data Carrier Detect	5	1	6
		CTS	Clear to Send	39	1	4
	2	RTS	Request to Send	6	1	28
		DTR	Data Terminal Ready	40	1	30
		TXD	Transmit Data	7	1	26
		SGND	Signal Ground	41	1	32
		DSR	Data Set Ready	8	1	36
		RXD	Receive Data	42	1	27
		DCD	Data Carrier Detect	9	1	31
		CTS	Clear to Send	43	1	29
	3	RTS	Request to Send	10	1	40
		DTR	Data Terminal Ready	44	1	42
		TXD	Transmit Data	11	1	38
		SGND	Signal Ground	45	1	44
		DSR	Data Set Ready	12	1	48
		RXD	Receive Data	46	1	39
		DCD	Data Carrier Detect	13	1	43
		CTS	Clear to Send	47	1	41
	4	RTS	Request to Send	14	1	17
		DTR	Data Terminal Ready	48	1	17
		TXD	Transmit Data	15	1	13
		SGND	Signal Ground	49	1	19
		DSR	Data Set Ready	16	1	23
		RXD	Receive Data	50	1	14
		DCD	Data Carrier Detect	17	1	18
		CTS	Clear to Send	51	1	16
B	5	RTS	Request to Send	18	2	3
		DTR	Data Terminal Ready	52	2	5
		TXD	Transmit Data	19	2	1
		SGND	Signal Ground	53	2	7
		DSR	Data Set Ready	20	2	11
		RXD	Receive Data	54	2	2
		DCD	Data Carrier Detect	21	2	6
		CTS	Clear to Send	55	2	4
	6	RTS	Request to Send	22	2	28
		DTR	Data Terminal Ready	56	2	30
		TXD	Transmit Data	23	2	26
		SGND	Signal Ground	57	6	32
		DSR	Data Set Ready	24	2	36
		RXD	Receive Data	58	2	27
		DCD	Data Carrier Detect	25	2	21
		CTS	Clear to Send	59	2	29
	7	RTS	Request to Send	26	2	40
		DTR	Data Terminal Ready	60	2	42
		TXD	Transmit Data	27	2	38
		SGND	Signal Ground	61	2	44
		DSR	Data Set Ready	28	2	48
		RXD	Receive Data	62	2	39
		DCD	Data Carrier Detect	29	2	43
		CTS	Clear to Send	63	2	41
	8	RTS	Request to Send	30	2	15
		DTR	Data Terminal Ready	64	2	17
		TXD	Transmit Data	31	2	13
		SGND	Signal Ground	65	2	19
		DSR	Data Set Ready	32	2	23
		RXD	Receive Data	66	2	14
		DCD	Data Carrier Detect	33	2	18
		CTS	Clear to Send	67	2	16

RS-232 Cable

Note ¯ RS-232 only supports signaling at speeds up to 56Kbps. If the connected device supports RS-423 signaling, use an RS-423 cable to obtain speeds up to 128Kbps.

This cable is not supplied, but can be ordered from Lucent. Specify product code MC-6.

 

Table B-5 RS-232 Cable with DB-25 Connectors

Pin	Name	Definition	Direction
2	TXD	Transmit Data	Output
3	RXD	Receive Data	Input
4	RTS	Request to Send	Output
5	CTS	Clear to Send	Input
6	DSR	Data Set Ready	Input
7	SGND	Signal Ground
8	DCD	Data Carrier Detect	Input
15	ST	Send Timing	Input
17	RT	Receive Timing	Input
20	DTR	Data Terminal Ready	Output

V.35 Cable

This cable is not supplied, but can be ordered from Lucent. Specify product code CBL-V.35-6.

 

Table B-6 Synchronous V.35 Cable

DB-25 Pin	Name	V.35 Pin	Definition	Direction
2	TXD	P	Transmit Data	Output
14	TXD-	S
3	RXD	R	Receive Data	Input
16	RXD-	T
4	RTS	C	Request to Send	Output
5	CTS	D	Clear to Send	Input
6	DSR	E	Data Set Ready	Input
7	SGND	B	Signal Ground
8	DCD	F	Data Carrier Detect	Input
15	ST	Y	Send Timing	Input
13	ST-	AA
17	RT	V	Receive Timing	Input
19	RT-	X
20	DTR	H	Data Terminal Ready	Output

X.21 Cable

This cable is not supplied, but can be ordered from Lucent. Specify product code CBL-X21-6.

 

Table B-7 Synchronous X.21 Cable

PortMaster Port W1	V.35 DB-25 Pin	Name	Definition	X.21 DB-15 Pin	Name
7	B	SGND	Signal Ground	8	SGND
				10	Control B
4	C	RTS	Request to Send	3	Control A
5	D	CTS	Clear to Send
8	F	CD	Carrier Detect	5	Indicate A
3	R	RXA	Receive Data	4	RXA
16	T	RXB	Receive Data	11	RXB
17	V	RX CLKA	Receive Timing	6	CLKA
15	Y	TX CLKA	Send Timing
19	X	RX CLKB	Receive Timing	13	CLKB
13	AA	TX CLKB	Send Timing
2	P	TXD A	Transmit Data	2	TXA
14	S	TXD B	Transmit Data	9	TXA

RS-530 Cable

This cable is not supplied, but can be ordered from Lucent. Specify product code CBL-530-6.

 

Table B-8 Synchronous RS-530 Cable

PortMaster Port W1	RS-530 CSU/DSU Pin	Name	Definition	Direction
2	2	TXD	Transmit Data	Output
14	14	TXD-
3	3	RXD	Receive Data	Input
16	16	RXD-
4	4	RTS	Request to Send	Output
5	5	CTS	Clear to Send	Input
6	6	DSR	Data Set Ready	Input
7	7	SGND	Signal Ground
8	8	DCD	Data Carrier Detect	Input
15	15	ST	Send Timing	Input
13	12	ST-
17	17	RT	Receive Timing	Input
19	9	RT-
20	20	DTR	Data Terminal Ready	Output

Category 5 Twisted Pair Cable for the S/T Interface

Five of these cables are included.

 

Table B-9 Category 5 Cable for the S/T Interface

RJ-45 Pin	Name	Definition	Direction
3	TXD	Transmit Data	Output
6	TXD-
4	RXD	Receive Data	Input
5	RXD-

Category 5 Twisted Pair Cable for the U Interface

Additional cables are available from most computer equipment suppliers.

 

Table B-10 Category 5 Cable for the U Interface

ISDN/U Port	Direction
4	Input/Output
5	Input/Output

High-Density 10-Pin Cable for the U Interface

Caution ¯ Do not use the 10-pin RJ-45 cable in an 8-pin RJ-45 port. Incorrect cable insertion can damage the PortMaster.

This cable is supplied with the MOD-10I-U expansion board and with models PM-2i-U and PM-Ei-U. Additional cables can be ordered from Lucent. Specify product code
CBL-HD45. Punchdown blocks are available from electronic supply stores that carry telephone equipment.

 

Table B-11 High-Density 10-Pin Cable

Pin	Color	Ports S0-9	Ports S10-19	Ports S20-29
1	White-gray	5	S18-19	S28-29
2	White-brown	4	S16-17	S26-27
3	White-green	3	S14-15	S24-25
4	White-orange	2	S12-13	S22-23
5	White-blue	1	S10-11	S20-21
6	Blue-white	1	S10-11	S20-21
7	Orange-white	2	S12-13	S22-23
8	Green-white	3	S14-15	S24-25
9	Brown-white	4	S16-17	S26-27
10	Gray-white	5	S18-19	S28-29

Disregard any solid red or solid blue lines because they are not used.

Ethernet Interface Specifications

 

Table B-12 Ethernet Interface Specifications

Ethernet Type	Connector Type	Cable Type	Transmission Distance
10Base5(AUI)	15-pin DEC-Intel-Xerox (DIX) for connection to external transceiver	RG-11 50 ohm coaxial	Trunk segment-1,640ft (500m) maximum Transceiver cable-164ft (50m) maximum Network trunk-8,200ft (2,500m) maximum
10Base2(BNC)	BNC T-connector	RG-58 A/U 50 ohm coaxial	Trunk segment-984ft (300m) maximum Station distance-1.5ft (0.5m) maximum Network trunk-3,035ft (925m) maximum
10BaseT(RJ-45)	RJ-45 for 10BaseT	Unshielded twisted pair	Hub distance-328ft (100m) maximum Repeaters-four maximum

To obtain a product list and prices for optional Ethernet accessories available from Lucent, contact the dealer from which you purchased your PortMaster.