There are currently four Cisco 1000 series models:
The main difference between the two routers is that the Cisco 1004 router includes an integrated network termination 1 (NT1) device and the Cisco 1003 router does not. The ISDN service provider supplies the NT1 connection worldwide, except in North America, where the NT1 device is supplied by the customer. Therefore, the Cisco 1004 router is for use in North America, and the Cisco 1003 router is applicable worldwide.
The rear view of the routers looks the same except for the following differences, shown in the following figure:

| Characteristic | Description |
|---|---|
| Supported network interfaces | ISDN BRI (RJ-45)1
Ethernet 10BaseT (RJ-45) Console port (RJ-45) (EIA/TIA-232) |
| Processor type | Motorola 68360 |
| Software | IP, IPX, AppleTalk routing and bridging over ISDN. |
| Dimensions (H x W x D) | 1.75 x 8.0 x 8.3 in. (4.4 x 21 x 20.3 cm) |
| Weight | 6.0 lb (2.7 kg) shipping weight |
| Description | Specification |
|---|---|
| Power | Cisco 1003 and Cisco 1004: 12 VDC output, minimum 0.5A
Desktop external power supply: 100 to 240 VAC at 50 to 60 Hz, 1.0A input Wall-mount external power supply: 120 VAC at 60 Hz input (for Cisco 1004 routers used in North America only) |
| Operating temperature range | 32 to 104×F (0 to 40×C) |
| Nonoperating temperature range | -40 to 185×F (-40 to 85×C) |
| Operating humidity (noncondensing) | 10 to 90% |
The Cisco 1003 and Cisco 1004 routers include the following standard features:
The following table lists the hardware product numbers for the Cisco 1003 and Cisco 1004 routers. If a product number ends with an equal sign (=), the item can be ordered only as a spare. If a product number does not end with an equal sign, the item can be ordered as a spare or as a configurable part of a system order.
| Option | Product Number |
|---|---|
| Base System | |
| Cisco 1003 Ethernet/ISDN BRI router | CISCO1003 |
| Cisco 1004 Ethernet/ISDN BRI router with NT1 | CISCO1004 |
| Options | |
| Console cable | CAB-1000-CON= |
| AC power supply | PWR-1000-AC1= |
| 4-MB to 8-MB DRAM upgrade | MEM-1003-8MD (Cisco 1003) MEM-1004-8MD (Cisco 1004) |
| 8-MB DRAM SIMM | MEM-1000-8MD= |
Refer to the "Cisco Internetwork Operating System (IOS) Software" chapter for detailed software feature set information.
The Cisco 1005 router is a small, desktop router that connects small, remote sites with Ethernet LANs to synchronous WANs at speeds up to 2.048 Mbps or to asynchronous WANs at speeds up to 115.2 kbps.

| Characteristic | Description |
|---|---|
| Supported network interfaces | Serial port (DB-60)1
Ethernet 10BaseT (RJ-45) Console port (RJ-45) (EIA/TIA-232) |
| Processor type | MC68360 |
| Software | IP, IPX, AppleTalk routing and bridging over leased lines, Frame Relay, Switched 56, SMDS, and X.25. IP/IPX routing over asynchronous WAN links. |
| Dimensions (H x W x D) | 1.75 x 8.0 x 8.3 in. (4.4 x 21 x 20.3 cm) |
| Weight (average shipping) | 6.0 lb (2.7 kg) |
| Description | Specification |
|---|---|
| Power | 12 VDC output, minimum 0.5A
External power supply: 100 to 240 VAC at 50 to 60 Hz, 1.0A input |
| Operating temperature range | 32 to 104×F (0 to 40×C) |
| Nonoperating temperature range | -40 to 185×F (-40 to 85×C) |
| Operating humidity (noncondensing) | 10 to 90% |
The Cisco 1005 router includes the following features:
The following table lists the hardware product numbers for the Cisco 1005. If a product number ends with an equal sign (=), the item can be ordered only as a spare. If a product number does not end with an equal sign, the item can be ordered as a spare or as a configurable part of a system order.
| Option | Product Number |
|---|---|
| Base System | |
| Cisco 1005 Ethernet/synchronous serial router | CISCO1005 |
| Options | |
| Console cable | CAB-1000-CON= |
| AC power supply | PWR-1000-AC1= |
| EIA/TIA-232 male DTE interface, 10 ft (3 m) | CAB-232MT |
| EIA/TIA-449 male DTE interface, 10 ft (3 m) | CAB-449MT |
| EIA-530 male DTE interface, 10 ft (3 m) | CAB-530MT |
| V.35 male DTE interface, 10 ft (3 m) | CAB-V35MT |
| X.21 male DTE interface, 10 ft (3 m) | CAB-X21MT |
| 4-MB to 8-MB DRAM upgrade | MEM-1005-8MD |
| 8-MB DRAM SIMM | MEM-1000-8MD= |
Refer to the "Cisco Internetwork Operating System (IOS) Software" chapter for detailed software feature set information.
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