Instruction manual

Introduction to Symmetry and M2150
6 Access Control Design Guide
ENVS
A four-camera digital video server (see page 26).
Table 1-2: M2150 Optional Modules
Device Picture Purpose
One-Port
RS232
module
A module (MN-232-1) that mounts onto a database unit to enable use of a
fall-back modem, bi-directional communications with an SMS PC, or
communications with a serial device such as an ENVS. The module is
necessary only if the integrated RS232 port is in use.
NIC4
module
A module that mounts onto a database unit to enable wired Ethernet
communications with an SMS PC. Encrypted and non-encrypted
communications versions are available.
NIC-WI
module
A module that mounts onto a database unit to enable wireless
communications with an SMS PC. The module supports 802.11b 128-bit
WEP and WPA encryption.
A separate aerial is provided with a magnetic base for placement on the
outside of the cabinet.
WIM
module
A module that mounts onto an 8DBC, 4DBC or 2DBC or door controller to
enable the use of Wiegand-interfaced readers. WIM-8, WIM-4 and WIM-2
variants are available.
Dual
RS485
module
A reader-interface module that mounts onto a 2DC or 2DBC to enable up
to two RS485 readers to be connected.
Quad
RS485
module
A reader-interface module that mounts onto a 4DC, 4DCN or 4DBC to
enable up to four RS485 readers to be connected.
8IN-4OUT
I/O
module
A module (known as the AC8/4 or MN-I/O) that mounts onto an 8DBC,
4DBC or 2DBC or door controller to enable connection to up to eight
monitor points and four auxiliary outputs.
4IN-8OUT
I/O
module
A module (known as the OC4/8) that mounts onto an 8DBC, 4DBC or
2DBC or door controller to enable connection to up to four monitor points
and eight auxiliary outputs.