Configuration manual

Appendix E Hardware specifications 255
Nortel Business Secure Router 252 Configuration — Advanced
Figure 154 Ethernet cable pin assignments
AC Power Adapter Specifications
Use only power supplies listed in the user instructions.
Phihong, Model PSA21R-180
Leader, Model MU18-2180100-XX (XX can be A1, A2, A3, B2 or C5 for the
different plugs used)
WAN/LAN Ethernet Cable Pin Layout:
Straight-Through Crossover
(Switch)
1 IRD +
(Adapter)
1 OTD +
(Switch)
1 IRD +
(Switch)
1 IRD +
2 IRD - 2 OTD - 2 IRD - 2 IRD -
3 OTD + 3 IRD + 3 OTD + 3 OTD +
6 OTD - 6 IRD - 6 OTD - 6 OTD -