Zhone Technologies 4821-A2 manual DSL Ports Connectors

Connectors and Pin Assignments

DSL Ports Connectors

The 50-pin RJ21X Telco connectors labeled DSL Ports 1–24 and (on the

48-port model) DSL Ports 25–48 provide the 2-wire loop interface from each DSL port to the POTS splitter. The Canadian designation for this connector is CA21A.

Table 5 lists the pin assignments for these interfaces. Note that Pins 25 and 50 are not used.

Table 5: DSL Connector Pinouts

	Connector Pins
DSL Port	(Ring, Tip)
1 or 25	1, 26
2 or 26	2, 27
3 or 27	3, 28
4 or 28	4, 29
5 or 29	5, 30
6 or 30	6, 31
7 or 31	7, 32
8 or 32	8, 33
9 or 33	9, 34
10 or 34	10, 35
11 or 35	11, 36
12 or 36	12, 37
13 or 37	13, 38
14 or 38	14, 39
15 or 39	15, 40
16 or 40	16, 41
17 or 41	17, 42
18 or 42	18, 43
19 or 43	19, 44
20 or 44	20, 45
21 or 45	21, 46
22 or 46	22, 47
23 or 47	23, 48
24 or 48	24, 49

1

25

26

50

02-17151

44 BitStorm 4800 Express Model 4821-A2 Installation Guide 4821-A2-ZN21-30