14
Primary to Basic Rate ISDN Multiplexer
SALES: 0118 965 5100
Mains Power supply
The mains power supply has a universal input suitable for 110V-240Vac/50-60Hz.
Connection to any other source may result in the unit failing to comply with safety
requirements.
Power should be supplied via an IEC mains lead (supplied).
The power supply must have a protective ground (earth). If not the mains filter will force the
metal case to a voltage equal to half the mains supply voltage.
DC power supply
The DC power supply has 2 input connectors. Both accept a voltage of -36V to -72V. Power
can be connected to either or both input connectors.
NB: the 0V connections on both connectors are common and are connected to the case.
The 0V connection should be connected to earth.
Figure 2
The Primary to Basic Rate ISDN Multiplexer controller card
Controller card
The controller card features 2 primary rate ports, 2 PC Card slots (not used), modem
(optional), LAN port, terminal port and LED's.
The terminal port is a V.24 compatible control port to which a PC or VT100 compatible
terminal or a PC emulating an ANSI terminal (e.g. running Procom, Windows Terminal,
Hyper terminal etc.) can be connected.
The LAN port is an IEEE 802.3 compatible Ethernet port.
It allows the Primary to Basic Rate ISDN Multiplexer to be controlled remotely via Telnet.
Software upgrades are possible via FTP. SNMP is also supported. If SNMP is to be used
contact Black Box for the MIB file.
The Line port is the modem (optional), which connects to an analogue telephone line.
Port 1 and port 2 are the primary rate ports - PRI 1 and PRI 2. PRI 1 provides the PRI
connection to a PRI line. PRI 2 provides the PRI connection to a PRI terminal equipment.
Pin-outs of the terminal, Ethernet, modem and PRI ports are given in an appendix.
