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Vmux-2100 Installation and Operation Manual Chapter 4 Management from a Terminal
Configuring the Vmux-2100 System 4-13
3. From the Dial-In Modem menu, choose:
Disable to disable connection of a dial-in modem to the control port
Enable to enable connection of a dial-in modem to the control port.
If an ASCII terminal or PC is connected directly to the control port while the dial-in
modem access option is enabled, signals from the terminal or PC may be confused
with modem control signals by the Vmux-2100 modem auto detect capability and
inadvertently cause the Vmux-2100 to disable the terminal or PC connection. To
avoid this situation, verify that the Control port dial-in modem access is set to
Disable (this is the default setting) before attempting to make a direct terminal or
PC connection to the Control Port (this can be accomplished safely via Telnet). If
dial-in modem access is not required, it is recommended to leave this option
disabled.
Configuring Signaling Information
Vmux-2100 allows you to configure the signaling parameters according to the
selected signaling mode: CAS for E1, Robbed Bit MF for T1 or CCS for E1/T1.
Signaling mode is selected via the E1 Parameters menu of the voice card (see the
Configuring External E1/T1 Ports section below).
• CAS/Robbed Bit MF – You must configure a signaling profile and signaling
table associated with it (ABCD bits, idle code and OOS signals).
• CCS – When working with CCS-SS7, you can configure the fill-in packets flow
by selecting the SS7 keep-alive suppression rate.
Configuring Signaling Profiles
If you are using CAS signaling, you must configure the signaling system of
Vmux-2100 to make it compatible with the signaling method used by the PBXs
connected to the voice E1/T1 ports. The management software allows you to
manipulate the ABCD signaling bits and methods of representation of the idle
code and out-of-service signals generated by the PBXs (see Table 4-1). Signaling
conversion is used for connection of PBXs, which use different signaling formats.
You can store up to five signaling profiles; Vmux-2100 uses only one of them at a
time. The signaling profile selection is performed via the E1 Parameters menu of
the voice card (see the Configuring External E1/T1 Ports section below).
The signaling profile configuration is available only for the units operating with CAS
signaling.
To configure the signaling profile:
1. From the Management menu (see Figure 4-6), choose Signaling Configuration
The Signaling Configuration menu appears (see Figure 4-15).
Note
Note