Paradyne 2600 IP DSLAM manual Chaining BitStorm 2600s

2. Cabling

Chaining BitStorm 2600s

Up to eight BitStorm 2600s can be chained together to use a single uplink. The same port (eth2 or eth3) used as the uplink for one unit must be used as the downlink for the next. For example, in this illustration:

￿The top unit has Port 3 (eth3) defined as its uplink and is connected to Port 3 of the next unit in the chain using a straight-through 8-position modular cable.

￿The middle unit has Port 2 (eth2) defined as its uplink and is connected to Port 2 of the next unit.

￿The bottom unit has Port 3 (eth3) defined as its uplink, which is the uplink for the stack. That unit is using the fiber interface.

PORT1-
10/100BT	PORT2-1
	0/100BT	1000BT
		PORT3
		K	T
		IN	C
		L	A
	CONSOLE	ALARM
PORT1-1
0/100BT	PORT2-
	10/100BT	1000BT
		PORT3
		K	T
		IN	C
		L	A
	CONSOLE	ALARM
PORT1-
10/100BT	PORT2-
	10/100BT	1000BT
		PORT3
		K	T
		IN
			C
		L	A
	CONSOLE	ALARM

GigE
S	M
U
AT	R	T
T	A	S
S	L	E
	A	T
GigE
S	M
U
AT	R	T
T	A	S
S	L	E
	A	T
GigE
S	M
U
AT	R	T
S	LA	E
T	A	S
		T

1	3	5	7
2	4			9	11	13
		6	8				15	17
				10	12				19	21		POTS 1-24
						14	16				23
								18	20	22	24
												DSL
												PORTS 1-24
1	3	5	7
2	4	6	8	9	11	13	15	17
				10	12				19	21		POTS 1-24
						14	16				23
								18	20
										22	24
												DSL
												PORTS 1-24
1	3	5	7
2	4	6	8	9	11	13	15	17
				10	12				19	21		POTS 1-24
						14	16				23
								18	20
										22	24
												DSL
												PORTS 1-24

03-17440

Copper cables connecting:

￿Port 2 to Port 2 must be at least 3 feet (0.9 m) long

￿Port 3 to Port 3 must be at least 6 feet (1.8 m) long

Shorter cables may cause data errors.

2600-A2-GN20-10 January 2004 2-5