Download SIM2000-24 SDSL Inverse Multiplexer Installation Instructions

Connecting the SDSL Line
Plug the SDSL cable RJ21 connector into the corresponding RJ21 port on the
back of the IP DSLAM. For most applications, a SIM2000-24 SDSL link requires a
straight-through cable. The SIM2000-24 can be connected with a remote SDSL
subscriber unit via either a single SDSL line or double SDSL lines (loop bonding).
For each port being connected to a remote SDSL subscriber unit, verify that the
SDSL link has been established: the SDSL LK LED for that port will pulse green to
indicate the connection has been made. Link up time can vary from one to five
minutes depending on the quality, gauge and distance of the copper cables.
Table 1. SDSL RJ21 Pinouts
Port
Connector Pins
(Ring, Tip)
Port
Connector Pins
(Ring, Tip)
Port 1
1, 26
Port 13
13, 38
Port 2
2, 27
Port 14
14, 39
Port 3
3, 28
Port 15
15, 40
Port 4
4, 29
Port 16
16, 41
Port 5
5, 30
Port 17
17, 42
Port 6
6, 31
Port 18
18, 43
Port 7
7, 32
Port 19
19, 44
Port 8
8, 33
Port 20
20, 45
Port 9
9, 34
Port 21
21, 46
Port 10
10, 35
Port 22
22, 47
Port 11
11, 36
Port 23
23, 48
Port 12
12, 37
Port 24
24, 49
Pins 25 and 50 are not used.
Loop Bonded SDSL Connection
Using two SDSL lines for one network connection (loop bonding) will net twice the
speed and data passing capability as a single-line SDSL connection. A second
SDSL line can also be considered a backup for the first, and vice versa, should
either line become disabled. Any two SIM2000-24 ports (consecutive or not) may
be connected to an SNE2020-S or SNE2020G-S subscriber unit to establish a
loop bonded connection.
NOTE: Any ports on the SIM2000-24 intended for a loop bonded connection with
an SNE2020-S or SNE2020G-S should be identically configured prior to
connection. Bonding ports with different configurations will likely result in
misplaced, misdirected, or dropped data. See the NMS Management User Guide
or the CLI and SNMP Management User Guide for configuration instructions. If
default settings are to be used for both ports, then prior configuration is not
necessary and you may proceed with installation.
SIM2-A2-GZ40-00
September 2004
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