Signal Pinouts

A P P E N D I X A

Signal Pinouts

This appendix gives the pinouts for the server rear ports and identifies connectors on various server boards. Topics include:

Gigabit Ethernet Ports

Network Management Port

Serial Ports

Alarm Port

USB Ports

A.1 Gigabit Ethernet Ports

The server has four autonegotiating 10/100/1000BASE-T Gigabit Ethernet system domain ports. All four Ethernet ports use a standard RJ-45 connector, the transfer rates for which are given in TABLE A-1. FIGURE A-1 shows the pin numbering of the ports. TABLE A-2 describes the pin signals.

TABLE A-1 Ethernet Connection Transfer Rates
Connection Type	IEEE Terminology	Transfer Rate
Ethernet	10BASE-T	10 Mbit/sec
Fast Ethernet	100BASE-TX	100 Mbits/sec
Gigabit Ethernet	1000BASE-T	1000 Mbit/sec

FIGURE A-1 Gigabit Ethernet Port Pin Numbering

Figure showing Gigabit Ethernet ports

TABLE A-2 Gigabit Ethernet Port Signals
Pin	Signal Description	Pin	Signal Description
1	Transmit/Receive Data 0 +	5	Transmit/Receive Data 2 -
2	Transmit/Receive Data 0 -	6	Transmit/Receive Data 1 -
3	Transmit/Receive Data 1 +	7	Transmit/Receive Data 3 +
4	Transmit/Receive Data 2 +	8	Transmit/Receive Data 3 -

A.2 Network Management Port

The server has one 10BASE-T Ethernet management domain interface, labelled NET MGT. For information on configuring this port for managing the server with ILOM, refer to the Sun Netra T5220 Server Administration Guide.

Caution - If you are planning to use the network management (NET MGT) port, you must use a shielded Ethernet cable to maintain your server’s NEBS compliance. The cable’s shield must be grounded at both ends.

FIGURE A-2 Network Management Port Pin Numbering

Figure showing the network management port

TABLE A-3 Network Management Connector Signals
Pin	Signal Description	Pin	Signal Description
1	Transmit Data +	5	Common Mode Termination
2	Transmit Data -	6	Receive Data -
3	Receive Data +	7	Common Mode Termination
4	Common Mode Termination	8	Common Mode Termination

A.3 Serial Ports

The server has two serial ports, labeled SERIAL MGT and TTYA. TABLE A-4 lists the default serial connection settings for both serial ports.

TABLE A-4 Default Serial Connection Settings
Parameter	Setting
Connector	SERIAL MGT or l0l0l
Rate	9600 baud
Parity	None
Stop bits	1
Data bits	8

A.3.1 Serial Management Port

The serial management connector (labeled SER MGT) is an RJ-45 connector that can be accessed from the rear panel. This port is the default connection to the server. Use this port only for server management.

Caution - You must use a shielded Ethernet cable to maintain your server’s NEBS compliance. The cable’s shield must be grounded at both ends.

FIGURE A-3 shows the pin numbering of the serial management port. TABLE A-5 describes the pin signals.

FIGURE A-3 Serial Management Port Pin Numbering

Figure showing the serial management port

TABLE A-5 Serial Management RJ-45 Connector Signals
Pin	Signal Description	Pin	Signal Description
1	Request to Send	5	Ground
2	Data Terminal Ready	6	Receive Data
3	Transmit Data	7	Data Set Ready
4	Ground	8	Clear to Send

If you need to connect to the SERIAL MGT port using a cable with either a DB-9 or a DB-25 connector, use a supplied adapter to perform the crossovers given for each connector. The supplied RJ-45 to DB-9 and RJ-45 to DB-25 adapters are wired as described in TABLE A-6 and TABLE A-7.

A.3.1.1 RJ-45 to DB-9 Adapter Crossovers

TABLE A-6 RJ-45 to DB-9 Ad apter Crossovers
Serial Port (RJ-45 Connector)		DB-9 Adapter
Pin	Signal Description	Pin	Signal Description
1	RTS	8	CTS
2	DTR	6	DSR
3	TXD	2	RXD
4	Signal Ground	5	Signal Ground
5	Signal Ground	5	Signal Ground
6	RXD	3	TXD
7	DSR	4	DTR
8	CTS	7	RTS

A.3.1.2 RJ-45 to DB-25 Adapter Crossovers

TABLE A-7 RJ-45 to DB-25 Adapter Crossovers
Serial Port (RJ-45 Connector)		DB-25 Adapter
Pin	Signal Description	Pin	Signal Description
1	RTS	5	CTS
2	DTR	6	DSR
3	TXD	3	RXD
4	Signal Ground	7	Signal Ground
5	Signal Ground	7	Signal Ground
6	RXD	2	TXD
7	DSR	20	DTR
8	CTS	4	RTS

A.3.2 Serial Port TTYA

The port labeled TTYA accepts a DB-9 connector. Use this port for general purpose serial data transfers. FIGURE A-4 shows the pin numbering of the serial port. TABLE A-8 describes the pin signals.

FIGURE A-4 Serial Port (TTYA) Pin Numbering

Figure showing the serial port

TABLE A-8 Serial Port (TTYA) Connector Signals
Pin	Signal Description	Pin	Signal Description
1	Data Carrier Detect	6	Data Set Ready
2	Receive Data	7	Request to Send
3	Transmit Data	8	Clear to Send
4	Data Terminal Ready	9	Ring Indicate
5	Ground

A.4 Alarm Port

The alarm port on the alarm rear transition module uses a standard DB-15 connector. In a telecommunications environment, use this port to connect to the central office alarming system. FIGURE A-5 shows the pin numbering of the alarm port. TABLE A-9 describes the pin signals.

Note - The alarm port relay contacts are rated for 100 V 0.2 A maximum.

FIGURE A-5 Alarm Port Pin Numbering

Figure showoing the alarm port

TABLE A-9 Alarm Connector Signals
Pin	Service	Pin	Service
1	NC	9	ALARM1_NC
2	NC	10	ALARM1_COM
3	NC	11	ALARM2_NO
4	NC	12	ALARM2_NC
5	ALARM0_NO	13	ALARM2_COM
6	ALARM0_NC	14	ALARM3_NO
7	ALARM0_COM	15	ALARM3_COM
8	ALARM1_NO	CHASSIS	FRAME GND

A.5 USB Ports

The server has two USB ports for attaching supported USB 1.1 compliant devices. FIGURE A-6 shows the pin numbering of the USB ports. TABLE A-10 describes the pin signals.

FIGURE A-6 USB Ports Pin Numbering

Illustration of the USB ports

TABLE A-10 USB Connector Pin Signals
Pin	Signal Description
1	+5 V
2	DAT-
3	DAT+
4	Ground