Multi-Tech Systems MVPFXS-24, MVPFXS-8, MVPFXS-16 manual RJ-21

MultiVOIP FXS User Guide Mechanical Installation & Cabling

The footprint of the RJ-21 connector is shown in Figure 3-7 and its pin-out list is presented in the table that follows.

Figure 3-7: RJ-21 Connector Footprint

RJ-21	TIP:	RING:
Connector	on Pins 1 – 24	on Pins 26 - 49
Pin-Out List
Wire Pairs for
Each Channel
Channel 1	1	26	√	√	√
Channel 2	2	27	√	√	√
Channel 3	3	28	√	√	√
Channel 4	4	29	√	√	√
Channel 5	5	30	√	√	√
Channel 6	6	31	√	√	√
Channel 7	7	32	√	√	√
Channel 8	8	33	√	√	√
Channel 9	9	34	√	√
Channel 10	10	35	√	√
Channel 11	11	36	√	√
Channel 12	12	37	√	√
Channel 13	13	38	√	√
Channel 14	14	39	√	√
Channel 15	15	40	√	√
Channel 16	16	41	√	√
Channel 17	17	42	√
Channel 18	18	43	√
Channel 19	19	44	√
Channel 20	20	45	√
Channel 21	21	46	√
Channel 22	22	47	√
Channel 23	23	48	√
Channel 24	24	49	√
	Pin 25 is not	Pin 50 is not
	connected.	connected.

6.Console Connection (optional – not usually needed for initial setup). The Console Cable is needed at initial setup only if your system cannot use the voip’s default IP address. In that case, the Console Cable is needed to change the MultiVOIP’s IP address. Also, if, at a later date, you need to update the MultiVOIP’s firmware, you will need to connect the Console Cable because it is required for that process, as well.

If needed, connect the Console Cable (RJ45 male to DB9 female) between the MultiVOIP and the control PC. Plug the RJ-45 end of the cable into the CONSOLE port of the MultiVOIP and the DB-9 end into a serial port on the PC.

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