Cabletron Systems 2H33-37R User Manual

Page of 182
Connecting to the Network
2H23-50R/2H33-37R User’s Guide
3-9
3.5.1
Connecting Cables to CONN 1 Through 4 
The device uses RJ21 connectors for the cables connected to CONN 1 
through CONN 4 (2H23-50R) or CONN 1 through CONN 3 (2H33-37R). 
Each of the 12 repeater ports associated with each RJ21 connector have 
internal crossovers.
To connect an RJ21, proceed as follows:
1.
Ensure that the device connected to the other end of the segment is 
powered on.
2.
If using an RJ21 straight connector, plug it into the appropriate RJ21 
port as shown in 
Figure 3-6
Straight Cable Connection
3.
Tighten the two screws on the RJ21 straight cable connector to secure 
it to the device.
NOTE
The cable pinouts for a 25-pair cable (RJ21) can be found in 
the Cabletron Systems 
Cabling Guide. Refer to 
 for 
details on how to obtain this document.
6
5
CONN 4
CONN 2
12
1
12
1
Link LED
22862-10
RJ21
Screw
Screw