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Expansion Modules

 

X.21

Brand
Cisco (19)3Com (4)ADC Kentrox (5)Enterasys (11)Nortel (8)Lucent (6)Nokia (4)
Form Factor
Plug-In Module (45)Plug-In Card (10)
Data Transfer Rate
10 Mbps Or Less (32)11 Mbps - 100 Mbps (2)More Than 100 Mbps (2)
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Cisco (PA4T) Expansion Module Image

Cisco (PA4T) Expansion Module

Serial RS-232 Interface, Cabling: Serial RS-232, Serial RS-449, Serial RS-530,... Read more
 
from 3 stores

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Cisco (HWIC-4T=) (HWIC4T) Expansion Module Image

Cisco (HWIC-4T=) (HWIC4T) Expansion Module

Serial RS-232 Interface, Cabling: Serial RS-232, Serial RS-449, Serial RS-530,... Read more
 
from 7 stores

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Cisco (NM-CEM-4SER=) Expansion Module Image

Cisco (NM-CEM-4SER=) Expansion Module

4 Mbps, Plug-In Module, Serial V.35 Interface, Cabling: Serial RS-232, Serial... Read more
 
from 2 stores

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Cisco (HWIC-4A/S=) (HWIC4AS) Expansion Module Image

Cisco (HWIC-4A/S=) (HWIC4AS) Expansion Module

Serial RS-449/V.35 Interface, Cabling: Serial RS-232, Serial RS-449, Serial... Read more
 
from 7 stores

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3Com (3C13764) Expansion Module Image

3Com (3C13764) Expansion Module

2 Mbps, Plug-In Module, Cabling: Serial RS-232, V.24, V.35, X.21 Read more
 
from 5 stores

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3Com (3C13762) Expansion Module Image

3Com (3C13762) Expansion Module

2 Mbps, Serial RS-232 Interface, Cabling: Serial RS-232, V.24, V.35, X.21 Read more
 
from 3 stores

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ADC Kentrox ADC Campus-RS FLEX (CAFLEX-RS530) Expansion Module Image

ADC Kentrox ADC Campus-RS FLEX (CAFLEX-RS530) Expansion Module

1.5 Mbps, Plug-In Module, Cabling: Serial RS-449, Serial RS-530, Serial... Read more
 
from 2 stores

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ADC Kentrox ADC Campus-RS (CAFLEX) Expansion Module Image

ADC Kentrox ADC Campus-RS (CAFLEX) Expansion Module

1.5 Mbps, Plug-In Module, Cabling: Serial RS-449, Serial RS-530, Serial... Read more
 
from 2 stores

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3Com (3C13863) Expansion Module Image

3Com (3C13863) Expansion Module

2 Mbps, Plug-In Card, Cabling: Serial RS-232, V.24, V.35, X.21 Read more
 
from 2 stores

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Cisco (CX-FSIP8-RF) Expansion Module Image

Cisco (CX-FSIP8-RF) Expansion Module

Plug-In Module, Serial RS-449/V.35 Interface, Cabling: Serial RS-232, Serial... Read more
 
from 1 store

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Cisco WIC−1T (WIC1T) Expansion Module Image

Cisco WIC−1T (WIC1T) Expansion Module

WIC Interface, Cabling: Serial RS-232, Serial RS-449, Serial RS-530, V.35, X.21 Read more
 
from 10 stores

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3Com (3C13715) Expansion Module Image

3Com (3C13715) Expansion Module

Serial RS-232 Interface, Cabling: Serial, Serial RS-232, V.24, V.35, X.21, X.21... Read more
 
from 2 stores

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Enterasys NIM-SER-04 Expansion Module Image

Enterasys NIM-SER-04 Expansion Module

Plug-In Module, Cabling: Serial, Serial RS-232, Serial RS-422, Serial RS-449,... Read more
 
from 2 stores

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Cisco (MGX-FRSM-HS1/B) Expansion Module Image

Cisco (MGX-FRSM-HS1/B) Expansion Module

Cabling: V.35, X.21 Read more
 
from 1 store

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Cisco (BC-6083A-SR=) Expansion Module Image

Cisco (BC-6083A-SR=) Expansion Module

Plug-In Module, Cabling: Serial RS-449, V.35, X.21 Read more
 
from 2 stores

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Enterasys (NIM-SER-02) Expansion Module Image

Enterasys (NIM-SER-02) Expansion Module

Plug-In Module, Cabling: Serial RS-232, Serial RS-422, Serial RS-449, Serial... Read more
 
from 1 store

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Cisco (BC-UFI-12X21=) Expansion Module Image

Cisco (BC-UFI-12X21=) Expansion Module

Plug-In Module, Cabling: X.21 Read more
 
from 1 store

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ADC Kentrox CAV35 Expansion Module Image

ADC Kentrox CAV35 Expansion Module

128 Mbps, Plug-In Card, Cabling: V.35, X.21 Read more
 
No longer
available for sale.

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Cisco (AX-DB15-4X21=) Expansion Module Image

Cisco (AX-DB15-4X21=) Expansion Module

Plug-In Module, Cabling: X.21 Read more
 
No longer
available for sale.

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Cisco (AX-FRSM-HS1=) Expansion Module Image

Cisco (AX-FRSM-HS1=) Expansion Module

10 Mbps, Plug-In Module, Cabling: X.21 Read more
 
No longer
available for sale.
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