Specifications

Functional Description
RADring
Installation & Operation Manual
2-18 Access Modules Functional Description 3/11/98 12:33
Medium Type 4 Mbps 16 Mbps
TL-4/AS & TL-4/ASD 500m 300m
TL-4/AU Level II (IBM Type 3) 100m 100m
TL-4/AU Level IV (AT&T 1061) 250m 150m
TL-4/AU Level V (QT&T 2061) 300m 180m
TL-4/ASU 250m 150m
TL-4/CX 300m 100m
1
3
2
4
1
2
3
4
TL-4/CX
1
3
2
4
1
2
3
4
TL-4/CX
1
3
2
4
1
2
3
4
TL-4/CX
1
2
3
4
TL-4/AU
1
3
2
4
1
2
3
4
TL-4/AU
1
3
2
4
1
2
3
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TL-4/AU
1
3
2
4
TL-4/S
1
3
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4
2
4
1
3
TL-4/S
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3
2
4
2
4
1
3
TL-4/S
1
3
2
4
2
4
1
3
UTP
MF-3
MF-3
RING 1
TERMINATED
MODULE
TERMINATED
MODULE
TERMINATED
MODULE
RING 2 RING 3
TXC TXC
STP RG-62
Figure 2-14 TL-4/A Access Modules
The TL-4/A active modules are available in four media versions:
TL-4/AS
Module with four DB-9 female connectors, occupying
two slots. This version is intended for use with shielded
twisted pair (STP) cables (150 ohm characteristic
impedance), such as IBM Type 1, 2, 6 or 9 cables.
TL-4/ASD High
Density
Module with two DB-9 female connectors, occupying
one slots. This version is intended for use with shielded
twisted pair (STP) cables (150 ohm characteristic
impedance), such as IBM Type 1, 2, 6 or 9 cables.
A T cable should be used at each port, for connection of
up to four workstations