CISCO2503

1 x 10Base-5 AUI, 2 x Serial, 1 x ISDN BRI WAN

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The Cisco 2500 access server series represents Cisco System's low-cost entry into the access server marketplace. This product family enables users to connect asynchronous devices such as terminals, modems, router consoles, slot machines, and Integrated Services Digital Network (ISDN) terminal adapters (TAs) into a routed network. This product family also allows users to backhaul routed traffic through T1/E1 lines.
Additional Information
Manufacturer CISCO
Manufacturer Part Number CISCO2503
SKU GROUP-127741
Flash Memory 8 MB
Marketing Information The Cisco 2500 access server series represents Cisco System's low-cost entry into the access server marketplace. This product family enables users to connect asynchronous devices such as terminals, modems, router consoles, slot machines, and Integrated Services Digital Network (ISDN) terminal adapters (TAs) into a routed network. This product family also allows users to backhaul routed traffic through T1/E1 lines.
Description The Cisco 2500 access server series represents Cisco System's low-cost entry into the access server marketplace. This product family enables users to connect asynchronous devices such as terminals, modems, router consoles, slot machines, and Integrated Services Digital Network (ISDN) terminal adapters (TAs) into a routed network. This product family also allows users to backhaul routed traffic through T1/E1 lines.
Height 1.8"
Width 17.5"
Depth 10.6"
Brand Cisco
Bypass No
Carrier Supported ISDN
Certifications & Standards
  • Safety:
  • UL 1950
  • CSA 22.2-950
  • EN60950
  • EN41003
  • AS3260
  • TS001
  • EMI:
  • FCC Class A
  • Canadian DOC Class A
  • EN55022 Class B
  • VCCI Class 2
  • PTT:
  • CTR2 (NET1, NET2)
  • CTR3 (NET3)
  • ITU-T (I.430, Q.921, Q.931)
  • JATE-NTT, TS-013
  • ME0200-1
  • CS-03
  • CR22 - IEEE 802.3
  • The synchronous serial interface supports the following standards in data terminal equipment (DTE) and data communications equipment (DCE) mode: EIA/TIA-232, EIA/TIA-449, V.35, and X.21. The EIA-530 standard is supported in DTE mode only.
Editor Choice No
Ethernet Aui Yes
Fast Ethernet Port No
Featured No
Form Factor
  • Rack-mountable
  • Wall Mountable
Product Name CISCO2503
Gigabit Ethernet Port No
Green Compliant No
Headset Port No
Hot Swappable Power Supply No
Input Voltage
  • 110 V AC
  • 220 V AC
ISM Band No
Limited Warranty 90 Day
Manageable No
Management Port No
Memory Technology DRAM
Alt Part No CISCO2503
Modular No
Model 2503
DSL Port No
Network Technology
  • 10Base-5
  • ISDN BRI
Network (RJ-11) No
Product Type Router Chassis
Number of Serial Ports 2
Number of Broadband (RJ-45) Ports 1
PoE (RJ-45) Port No
Redundant Power Supply No
Shared SFP Slot No
NSN Part Number 7.03E+12
SKU UNSPSC 43201602
Stack Port No
Standard Memory 4 MB
Token Ring Port No
Total Number of Ports 3
10Gigabit Ethernet Port No
Uplink Port No
Usb No
UNII Band No
Wireless LAN No

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