
Polycom RMX 1500/2000/4000 Getting Started Guide
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21 Define the following parameters:
22 Click Next.
Table 2-11  Fast Configuration Wizard – Spans Definition
Field Description
Framing Select the Framing format used by the carrier for 
the network interface from the list.
•For T1 spans, default is SFSF.
•For E1 spans, default is FEBE.
Side Select one of the following options:
•User side (default)
•Network side
•Symmetric side
Note: If the PBX is configured on the network side, 
then the RMX unit must be configured as the user 
side, and vice versa, or both must be configured 
symmetrically.
Line Coding Select the PRI line coding method from the list.
•For T1 spans, default is B8ZS.
•For E1 spans, default is HDB3.
Switch Type Select the brand and revision level of switch 
equipment installed in the service provider’s central 
office.
•For T1 spans, default is AT&T 4ESS.
•For E1 spans, default is EURO ISDN.