 | HWIC-1B-U=1-port ISDN BRI NT1 HWIC |
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| | HWIC-1CE1T1-PRI=1 port channelized T1/E1 and PRI HWIC (data only) |
|
| | HWIC-1DSU-56K4=1-port 4-WIRE 56/64 KBPS WAN INTERFACE CARD |
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| | HWIC-1DSU-T1=1-Port T1/Fractional T1 DSU/CSU WAN Interface Card |
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| | HWIC-1SER=1-port serial WAN (Cisco 1861 only) |
|
| | HWIC-1T-C=1-Port Serial WAN Interface Card |
|
| | HWIC-1T1/E1=T1/E1 HWIC w/Intg CSU/DSU (Cisco 1861 only) |
|
| | HWIC-2A/S=2-Port Async/Sync Serial WAN Interface Card |
|
| | HWIC-2CE1T1-PRI=2 port channelized T1/E1 and PRI HWIC (data only) |
|
| | HWIC-2SER=2-port serial WAN (Cisco 1861 only) |
|
| | HWIC-2SHDSL=2-pair G.SHDSL HWIC |
|
| | HWIC-2T-C=2-Port Serial WAN Interface Card |
|
| | HWIC-3G-CDMA-T=3G (for India only) HWIC BSNL EVDO Rev A/0/1xRTT 800/1900MHz |
|
| | HWIC-4A/S=4-Port Async/Sync Serial HWIC |
|
| | HWIC-4B-S/T=4-port ISDN BRI High-Speed WAN Interface Card |
|
| | HWIC-4ESW-C=Four port 10/100 Ethernet switch interface card |
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