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This appendix lists
(An expansion module includes everything needed to add a particular kind of card or module to an existing system.)
Part numbers for FRUs and expansion modules are provided in Table C-1. Part numbers for external data cables and power cords appear in the LightStream 2020 Site Planning and Cabling Guide. For descriptions of FRUs listed here, refer to the chapter entitled "Hardware Overview."
 | Caution Before removing any components from the chassis, read the safety instructions in the chapter entitled "Hardware Troubleshooting." You can damage the system by removing components when you are not grounded. |
| Category | Component | Order Number |
|---|---|---|
| Base systems (Chassis, midplane, switch card, and blowers) | AC-powered base system | L2020-BASE-AC |
| Redundant AC-powered base system | L2020-BASE-AC-R | |
| DC-powered base system | L2020-BASE-DC | |
| Redundant DC-powered base system | L2020-BASE-DC-R | |
| NP card and components | NP option module
|
L2020-NP-DC= |
| NP access card | L2020-NP-A= | |
| NP card spare | L2020-NP= | |
| Disk assembly | L2020-DSK-DC= | |
| Floppy drive | L2020-FDA | |
| Hard drive | L2020-DA-HD= | |
| Memory upgrade, from 16 mb to 32 mb | L2020-UPG-16M= | |
| Switch card | Switch card only
|
L2020-SC-NOCAB= |
| Modem cable assembly | L2020-MOD-CBL= | |
| Interface modules | Low-speed line card, V.35 module
|
L2020-LSC-V35-M= |
Low-speed line card, RS-449 module
|
L2020-LSC-449-M= | |
Low-speed line card, X.21 module
|
L2020-LSC-X21-M= | |
Packet line card, Ethernet module
|
L2020-8E-M= | |
Packet line card, fiber Ethernet module
|
L2020-8EF-M= | |
Packet line card, FDDI module
|
L2020-2FD-M= | |
Packet line card, serial V.35 module
|
L2020-8S-V35-M= | |
Packet line card, serial RS-449 module
|
L2020-8S-449-M= | |
Packet line card, serial X.21 module
|
L2020-8S-X21-M= | |
Packet line card, T1 circuit emulation (CEMAC) module
|
L2020-8T1-CE-M= | |
Packet line card, E1 circuit emulation (CEMAC) module
|
L2020-8E1-CE-M= | |
Packet line card, E1/BNC circuit emulation (CEMAC) module
|
L2020-8E1-CE-BN-M= | |
Packet line card, E1/SMZ circuit emulation (CEMAC) module
|
L2020-8E1-CE-SM-M= | |
Cell line card, 1-port multimode OC-3c module
|
L2020-1M-OC3-M= | |
Cell line card, 1-port single mode OC-3c module
|
L2020-1S-OC3-M= | |
Cell line card, 2-port multimode OC-3c module
|
L2020-2M-OC3-M= | |
Cell line card, 2-port single mode OC-3c module
|
L2020-2S-OC3-M= | |
Cell line card, 4-port T3 module
|
L2020-4T3-M= | |
Cell line card, 8-port T3 module
|
L2020-8T3-M= | |
Cell line card, 4-port E3 module
|
L2020-4E3-M= | |
| Spare line and access cards | 1 port single-mode OC3 spare | L2020-1S-OC3-A= |
| 2 port single-mode OC3 spare | L2020-2S-OC3-A= | |
| 1 port multimode OC3 spare | L2020-1M-OC3-A= | |
| 2 port multimode OC3 spare | L2020-2M-OC3-A | |
| 4 port E3 access card spare | L2020-4E3-A= | |
| 4 port T3 access card spare | L2020-4T3-A= | |
| 8 port T3 access card spare | L2020-8T3-A= | |
| 8 port T1 CEMAC spare | L2020-8T1-CE-A= | |
| 8 port E1 CEMAC spare | L2020-8E1-CE-A= | |
| Cell line card spare, 1 TSU | L2020-CLC-1= | |
| Cell line card spare, 2 TSU | L2020-CLC-2= | |
| Ethernet card spare | L2020-8E-A= | |
| FDDI card spare | L2020-2FD-A= | |
| Fiber/Ethernet card spare | L2020-8EF-A= | |
| Low-speed access card spare | L2020-LSC-A= | |
| Low-speed card spare | L2020-LSC= | |
| Packet line card spare | L2020-PLC= | |
| Fantails | E1 BNC fantail | LS-8E1-CE-FT-BN= |
| E1 SMZ fantail | LS-8E1-CE-FT-SM= | |
| RS449 fantail | L2020-4RS4-FT= | |
| T3/E3 fantail panel | L2020-T3E3-FT= | |
| V35 fantail | L2020-4V35-FT= | |
| X21 fantail | L2020-4X21-FT= | |
| Fantail cable | L2020-CAB-Fn= where n = 4, 8, or 12 | |
| Power supplies | AC bulk power tray, Rel. 2.1 (dual) | L2020-PS-AC-D= |
| AC bulk power tray, Rel. 1 | L2020-PS-AC= | |
| DC bulk power tray | L2020-PS-DC= | |
| 35w power supply for disk assembly | L20202-DA-35= | |
| Power supply cover | L2020-PSC= | |
| Cables | DS3 coaxial | LS-CAB-T3-CXn= where n=3, 25, 50, or 100 ft. |
| X21 DTE-DCE | LS-CAB-X21-TCn= where n=30, 50, or 100 ft. | |
| V35 DTE-DCE | LS-CAB-V35-TCn= where n=30, 50, or 100 ft. | |
| V35 DTE-DTE | LS-CAB-V35-TTn= where n=8, 30, 50, or 100 ft. | |
| RS449 DTE-DCE | LS-CAB-RS4-TCn= where n=30, 50, or 100 ft. | |
| RS449 DTE-DTE | LS-CAB-RS4-TTn= where n=8, 30, 50, or 100 ft. | |
| 4T3 cable bundle | LS-CAB-4T3-nB= where n=4, 8, or 12 ft. | |
| 8T3 cable bundle | LS-CAB-8T3-nB= where n=4, 8, or 12 ft. | |
| 4E3 cable bundle | LS-CAB-4E3-nB= where n=4, 8, or 12 ft. | |
| E1 cable bundle | LS-CAB-8E1-nB where n=4, 8, or 12 ft. | |
| Other components | AC powered chassis | L2020-CHAS-AC= |
| DC powered chassis | L2020-CHAS-DC= | |
| Midplane | L2020-MID-PL= | |
| Disk assembly connector: 64-pin DIN connector with spacer | L2020-64DIN= | |
| Blower assembly | L2020-FAN= | |
| Front blower cover | L2020-FBC= | |
| Rear blower cover | L2020-RBC= | |
| Filler panels to cover 1 empty slot (front and rear) | L2020-FIL-1= | |
| Filler panels to cover 5 empty slots (front and rear) | L2020-FIL-5= | |
| Peripheral tray cover | L2020-PER-CVR= |
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