Using The Correct Cable; Rs485 Communication Wiring; Analog Output Wiring (Control Techniques Vsds); Echelon Network Wiring - Emerson E2 Einstein Manual

4 Using The Correct Ca-
ble
4.1. RS485 Communication
Wiring
CPC specifies all RS485 I/O and MODBUS wir-
ing used by the E2 must be Belden 8641 (24AWG,
300V, CPC P/N 135-8641); Belden 8761 (22 AWG,
300V not stocked by CPC); or a 600V-shielded
22AWG equivalent stocked by CPC (P/N 135-0600).
These are two-connector shielded twisted pair cable
that support a maximum daisy chain cable distance of
4000 feet (1219 m) between the E2 and the end
device on the network.
Provided the cable can be routed away from
noise generators and running in parallel with high-
voltage wire, any of the three specified cables will
provide adequate shielding from external noise.
4.2. Analog Output Wiring
(Control Techniques
VSDs)
If using a MultiFlex analog output or 4AO board
to drive a Control Techniques VSD, you MUST use
shielded cable between the analog point and the VSD
drive speed input. Use the same two-connector
shielded cable specified for RS485 use: Belden 8641
(24AWG, 300V, CPC P/N 135-8641); Belden 8761
(22 AWG, 300V not stocked by CPC); or a 600V-
shielded 22AWG equivalent stocked by CPC (P/N
135-0600).
4 • E2 Controller Wiring Practices

4.3. Echelon Network Wiring

CPC specifies one type of cable for Echelon Net-
work wiring: a Level 4, twisted pair, stranded,
shielded cable that meets all requirements for Eche-
lon LonWorks networks. This cable is available in
both plenum and non-plenum varieties from CPC
(see part numbers in Table 4-1). This cable is the
only cable type supported by CPC.
Cable Type
1 pair, non-plenum
1 pair, plenum
Table 4-1 - Recommended Wiring

4.4. Ethernet Network Wiring

4.4.1. Shielding

Standard, unshielded CAT5/5e cable can be used
for wiring E2s to an Ethernet network as long as the
cable is not run near sources of electrical noise. Oth-
erwise, if the cable will be used in a noisy environ-
ment, shielded CAT5e cable (Belden 1533, plenum;
1533R for non-plenum) should be used. For this type
of cable, you should use shielded RJ45 connectors
meant for solid conductor wire (L-Com TDS8PC5
or equivalent). When connecting CAT5e cable to
shielded RJ45 connectors:
CPC Part Number
135-2300
135-2301
026-1903 Rev 4 19-APR-2010