AT&T Release 2.0 manual Setting the 400EM Module DIP Switches, Signaling Type Ports 1S Default

Installing the Control Unit

Table 2-4. Setting the 400EM Module DIP Switches

			DIP	E&M Signaling Type
	Ports
				1S (Default)
(As numbered in			Switch		1 C	5
Figure 2-15)			Position	Unprotected -	Protected	Simplex
				E&M Mode	E&M Mode	Mode
			1	ON	OFF	NA
2		4	2	ON	OFF	NA
			3	OFF	OFF	ON
			4	OFF	OFF	ON
			5	OFF	OFF	ON
			6	ON	OFF	NA
1		3	7	ON	OFF	NA
			8	OFF	OFF	ON
			9	OFF	OFF	ON
			10	OFF	OFF	ON

Example: If ports 1 through 4 are programmed per column 2 of Table 2-5, set the DIP switches as indicated in column 3:

Table 2-5. Sample DIP Switches for the 400EM Module

Ports	E&M Signal	Switches
1 and 2	1C	Set all switches to OFF
3 and 4	1S	Default: no action required

Installing the Modules 2-55