RTS DSI 2008 manual GPI Output Numbers a, UIO-256, Wire Call Send and Call Enable/Inhibit

		GPI OUTPUT NUMBERSa			RELAY CONTACT PIN NUMBERS
					NORMAL		NORMAL
	UIO-256	UIO-256	UIO-256	UIO-256	CLOSED	COMMON
							OPEN (NO)
	FRAME #1	FRAME #2	FRAME #3	FRAME #4	(NC)	CONTACT
							CONTACT
					CONTACT
1		17	33	49	38	13	40
2		18	34	50	39	14	15
3		19	35	51	41	16	43
4		20	36	52	42	17	18
5		21	37	53	44	19	46
6		22	38	51	45	20	21
7		23	39	55	41	22	49
8		24	40	56	48	23	24
9		25	41	57	26	1	28
10		26	42	58	27	2	3
11		27	43	59	29	4	31
12		28	44	60	30	5	6
13		29	45	61	32	7	34
14		30	46	62	33	8	9
15		31	47	63	35	10	37
16		32	48	64	36	11	12

a. Dependent on UIO-256 DIP Switch SW1 Settings for Input/Output Range as summarized in the UIO-256 manual.

Call Signal Connections for other 4-wire Communications Systems

4-wire Call Send and Call Enable/Inhibit

The DSI 2008 accepts a switch-contact input from the 4-wire system and then generates a call signal output to the 2-wire system. The DSI 2008 also accepts an optional switch contact input to enable or inhibit call signaling between the 4-wire and 2-wire systems. Figure 6 shows the typical connections.

FIGURE 6. Typical call send and call enable/inhibit connections for a 4-wire intercom system.

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