Patton electronic 1012ARC, Asynchronous user manual default, Position 1&2, RJ-11

3.3 REAR CARD CONFIGURATION

After you have configured the Model 1012ARC, you will need to set up your rear card. The Model 1012ARC has two interface card options: the 1Q11 (which comes equipped with two RJ-11 ports and two RJ-45 ports) and the 1Q45 (which comes equipped with four RJ-45 ports). Figure 3 illustrates these two different options.

The table below provides a summary of strap functions for both of the rear cards. Following Figure 5 is a description of each strap and its function.

INTERFACE CARD STRAP SUMMARY TABLE #1

Strap	Position 1&2	Position 2&3
JB2	Line A Shield	No Shield†

1Q11

Twisted Pair		RJ-11
Line Connection
	}	RJ-11
RS-232	}	RJ-45

Connection

RJ-45

1Q45

RJ-45 }

Twisted Pair Line

Connection

RJ-45

RJ-45 }

RS-232

Connection

RJ-45

JB4	Line B Shield	No Shield†
JB5	SGND & FRGND	Open†
JB6	DTE A DSR†	N/A
JB7	DTE B DSR†	N/A

Summary of strap settings, † indicates factory default

JB2 & JB4: Line A Shield & Line B Shield

This strap pertains to the line interface. In the connected (closed) position, the strap links RJ-11 pins 1 and 6 (RJ-45 pins 2 and 7) to

Figure 3. Model 1012ARC rear interface card options

Prior to installation, you should examine the rear card you have selected and ensure that it is configured for your application. Each rear card is configured by setting straps on the PC board. Section 3.4 describes the strap locations and settings for each card.

3.4 REAR CARD STRAP SETTINGS

Figure 4 shows the strap locations for the 1Q11 and the 1Q45 rear cards. These straps determine various grounding characteristics for the RS-232 and twisted pair lines.

frame ground. These pins can be used as connections for the twisted pair cable shield. In the open (disconnected) position, pins 1 and 6 (or 2 and 7) remain connected, but are “lifted” from frame ground.

JB2	Setting
Position 1&2	Line A Shield Connected
Position 2&3	No Shield (default)
JB4	Setting
Position 1&2	Line B Shield Connected
Position 2&3	No Shield (default)

JB5: SGND & FRGND

		JP2			1
					2
					3
			JP4
	1
	2
	3			1
				2
				3
				JP5
				JP6
				1
JP7		1 2 3
				3
				2

(Unit A)

(Unit B)

(Unit A)

(Unit B)

}

}

Converter

twisted pair

Terminal

In the connected (closed) position, this strap links signal ground and frame ground. In the open (disconnected) position, pin 1 is “lifted” from frame ground.

JB5	Setting
Position 1&2	SGND and FRGND Connected
Position 2&3	SGND and FRGND Not Connected
	(default)

Figure 4. Strap locations for both rear cards

5 6