Pan Dacom
Nets work together.
Version 1.1
SPEED-DSL 4.6
(9900-005-001-A, 9900-006-001-A)
page 5 of 14
1.3.1 Bandwidth
Switches #1-3: SPEED-DSL 4.6-P and SPEED-DSL 4.6G-P ONLY
Switches 1-3 on the SPEED-DSL 4.6-P work in tandem with one another to
provide eight bandwidth options for the two SDSL ports; bandwidth for the two
ports cannot be configured individually. Distance capabilities listed in the
following table assume the use of 26 American Wire Gauge (AWG) cable.
Connections made with cable of a lesser gauge (e.g., 24 AWG) will link up at
greater distances. Your SPEED-DSL 4.6 may not link up if the cable is in poor
condition or if the cable distance is greater than a particular bandwidth will
support; if link IS achieved under such conditions, traffic quality may be affected
(e.g., packets may be dropped).
BANDWIDTH AND DISTANCE OPTIONS
Switch Position
Bandwidth (kbps)
Distance
1 2 3
Single Line
Connection
Double Line
Bonded
Connection
Feet Meters
down down down
2,320
4,640
11,000 3,353
down down up
2,064
4,128
11,900 3,627
down up down 1,552
3,104 12,600 3,840
down up up
1,040
2,080 15,500 4,724
up down
down
784
1,586 16,000 4,877
up down up
528
1,056 17,900 5,456
up up
down 400
800 18,900 5,761
up up up
Adaptive* Adaptive*
varies varies
*Adaptive
mode allows the SPEED-
DSL 4.6-P to train up to the best
possible speed supported by the
SPEED-DSL 4.6-P, the remote modem
to which it's connected, and the
copper cable pair(s) connecting the
two. The maximum reachable
distance for a single line SPEED-DSL
4.6-P connection in Adaptive mode is
24,700 feet (at 144 kbps).
N
OTE
Bandwidth cannot be configured on the SPEED-DSL 4.6-S; subscriber units
determine bandwidth via communication with their partner SDSL provider
unit.
1.3.2 Ethernet Duplex Mode
Switch 4: both provider and subscriber units
The Ethernet link can be configured at either Full Duplex or Half Duplex mode.
Although both ends of the ETHERNET connection must have the same duplex
mode configuration, it is not necessary for partner providers and subscribers to be
configured the same; duplex mode does not apply to the SDSL link.
SWITCH 4
CONFIGURATION
down Half
Duplex
up Full
Duplex
1.3.2.1 Half Duplex Ethernet
Receive and transmit functions are mutually exclusive; data transmission
occurs in only one direction at a time. Packet collisions are not unusual.
1.3.2.2 Full Duplex Ethernet
