Telex BP-1002, BP-2002 operating instructions Internal Switches and Jumpers

Table 3. Internal Switches and Jumpers

Jumper/Switch	Jumper or Switch Function	Default Setting
Number
SW3	Electret/Dynamic Microphone	Dynamic
^	Select
	(Must be set to Dynamic when JP9
	functions are designed
JP9	Balanced/Single-ended Dynamic	Pins 1&2
^	Mic	shorted
^	(SW1 must be set to Dynamic)
	Single-ended Mic: Pins 1&2 shorted
^	Balanced Mic: Pins 2&3 shorted
JP6	Power Select	Pins 2&3
^	Channel One Power: Pins 2&3	shorted
^	shorted
	(On BP-1002, pins 2&3 always
	shorted)
^	Channel Two Power: Pins 1&2
	shorted
JP5	Power Select	Pins 2&3
		shorted
^	Channel One Power: Pins 2&3
	shorted (On BP-1002, Pins 2&3
	always shorted.)
^	Channel Two Power: Pins 1&2
	Shorted
^	(Must be set for same channel as
	JP6 for proper power operation in
	Audiocom® mode on BP-2002)
^	(Must be used in conjunction with
	SW1)
SW1	Clear-Com / Audiocom® Operation	Balanced
^	Unbalanced / Balanced Line
^	(Must be used in conjunction with
	JP4, JP5, JP2, and JP1)
JP4	Clear-Com / Audiocom® Operation	Jumper on one
	Pins 1&2 shorted: UNBAL (Clear-	pin only
	Com)
JP2	DC Call Detect (Clear-Com	No jumper
	operation only, not used in	present
	Audiocom® mode) BP-2002 only
^	Disabled: No pins jumpered
^	Enabled: Pins 1&2 shorted
^	(To enable, use jumper from JP5)
JP1	DC Call Detect (Clear-Com	Jumper on one
	operation only, not used in	pin only
	Audiocom® mode) BP-2002 only
^	Disabled: No pins jumpered
^	Enabled: Pins 1&2 shorted
JP13	For RTS™ use only	Must be
		installed

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