Cisco Systems IPMUX-1E Connecting the Control Port, E&M Interface Pin Assignments for RJ-11

IPmux-1/1EInstallation and Operation ManualChapter 2 Installation

Table 2-5. E&M Interface Pin Assignments for RJ-11

Pin Number	Designation	Function
1	SB	Signaling battery
2	M	M lead input
3	R1-0UT	4-wire voice output
		2-wire voice input/output
4	R-IN	4-wire voice input
5	T-IN	4-wire voice input
6	T1-OUT	4-wire voice output
		2-wire voice input/output
7	SC	Function depends on signalling mode:
		RS-464 Type I, III: Direct connection to signal
		ground
		RS-464 Type V, SSDCS: Connection to signal
		ground through 1.1 kΩ resistor
		RS-464 Type II: SG lead
8	E	E lead output

Table 2-6. FXS/FXO Interface Pin Assignments for RJ-11

Pin Number	Designation	Direction	Function
1, 2			Not connected
3	RING	IN/OUT	two-wire input/output
4	TIP	IN/OUT	two-wire input/output
5, 6			Not connected

Connecting the Control Port

The Control port is located on the IPmux-1/1E front panel (Figure 2-2). The

External Clock port pinout is shown in Figure 2-10listed in Table 2-7.

8 7 6 5 4 3 2 1

Figure 2-10. External Clock Port Pinout

Installation and Setup 2-9