Table Of Contents

Modular Port Adapter Configuration Guidelines

Modular Port Adapter Configuration Guidelines

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The maximum recommended bandwidth points on each Peripheral Component Interconnect (PCI) bus is 600 points. For best performance we recommend that you avoid using port adapters that exceed the total available bandwidth for your router.

Table A-1 shows the modular port adapter bandwidth points available for each model and Table A-2 lists the port adapter bandwidth points.

Table A-1 Cisco 7100 Series PCI Bus Bandwidth Guidelines

Model	PCI Bus 0 Total Bandwidth Points Used (Slots 1, 3, 5)	PCI Bus 1 Total Bandwidth Points Used (Slots 0, 2, 4)	Bandwidth Points Available for Modular Port Adapter
7120-4T1	195 + port adapter	400	405
7120-T3	270 + port adapter	400	330
7120-E3	270 + port adapter	400	330
7120-AT3	270 + port adapter	400	330
7120-AE3	270 + port adapter	400	330
7120-SMI3	270 + port adapter	400	330
7140-2T3	360	400 + port adapter	200
7140-8T	195	415 + port adapter	185
7140-2FE	180	400 + port adapter	200
7140-2E3	360	400 + port adapter	200
7140-2AT3	270	490 + port adapter	110

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Note For the Cisco 7140-2MM3, we recommend that you use port ATM 1/0 as your primary interface and port ATM 2/0 as your backup interface.

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Table A-2 Cisco 7100 Series Modular Port Adapter Bandwidth Specifications 

Port Adapter Type	Product Name	Bandwidth Points
ATM
1-port multimode	PA-A1-OC3MM	300
1-port single-mode intermediate reach	PA-A1-OC3SMI
Enhanced	PA-A3-T3	90
	PA-A3-E3
	PA-A3-OC3MM	300
	PA-A3-OC3SMI
	PA-A3-OC3SML
ISDN
4- and 8-port Basic Rate Interface (BRI) ISDN	PA-4B-U	-
	PA-8B-ST
Fast Ethernet and Ethernet
8-port Ethernet 10BaseT	PA-8E	80
5-port Ethernet 10BaseFL	PA-5EFL	50
4-port Ethernet 10BaseT	PA-4E	40
2-port Fast Ethernet/ISL 100BaseTX	PA-2FEISL-TX	300
2-port Fast Ethernet/ISL 100BaseFX	PA-2FEISL-FX
1-port Fast Ethernet 100BaseTX	PA-FE-TX	200
1-port Fast Ethernet 100BaseFX	PA-FE-FX
Serial
1-port high-speed serial	PA-H (Rev. B)	100
2-port high-speed serial	PA-2H (Rev. B)	200
1-port E3 high-speed serial	PA-E3	90
1-port T3 high-speed serial	PA-T3
1-port T3+ high-speed serial	PA-T3+
2-port E3 high-speed serial	PA-2E3	180
2-port T3 high-speed serial	PA-2T3
2-port T3+ high-speed serial	PA-2T3+
8-port synchronous serial (X.21)	PA-8T-X21	-
8-port synchronous serial (V.35)	PA-8T-V35
8-port synchronous serial (EIA/TIA-232)	PA-8T-232
4-port synchronous serial, enhanced	PA-4T+	-
Special adapters
Integrated Service Module (ISM)	SM-EC-DES	180
	SM-EC-3DES
Token Ring
4-port dedicated Token Ring	PA-4R-DTR	120