Carrier Access Access Bank II SNMP - Manual (Page 111)

4-Wire E&M/TO Configuration
11-8 9/24/01
Table 11-3: E&M T1 Signaling
*Don’t care (0 or 1)
11.7 Normal and Tandem Cables
Individual E&M/TO voice cards require the purchase of the Normal mode or Tandem mode cables
listed below in Table 11-4. The type of cable used with the signaling line connector determines
whether all twelve channels of that card operate only in that mode. Physically, the Normal and Tan-
dem cables have one 96-pin DIN connector that plugs into the E&M card. The 96-pin DIN connector
has two 50 conductor, 24 AWG cables leading to two 50-pin Telco connectors. The Telco connectors
use standard RJ-2HX pinouts for 4-wire E&M, providing six channels per connector (twelve chan-
nels per card). Figure 11-8 and Figure 11-9 show the 4-wire E&M/TO cables.
Table 11-4: Normal and Tandem Mode Cables for 4-wire E&M/TO Card
11.8 Configuring Signaling Types and Trunk Processing
The 4-wire E&M/TO card is also equipped with a 4-position DIP switch for selecting between regu-
lar or clear channel E&M signaling types and setting busy or idle during trunk processing. This
switch is located at the front of the circuit board next to the 64-pin DIN connector.
Detector XMT Signaling Bits
A B
RCV Signaling Bits
A B
Driver
Off 0 0
On 1 1
0 * On-Hook
1 * Off-Hook
CAC
Part Number
Cable
Length
Application Connectors
and Wiring
List
Price
005-0004-10’ 10ft
(3.05m)
Normal Mode Cable supporting E&M Types I, II,
IV, and V in Normal (Non-Tandem) Operation.
Normal operation is typical of channel equipment
such as phones, and modems, which are viewed as
terminating equipment. C-Type 96-Pin
Male to Dual
50 Pin Telco
Male Connec-
tors, 24AWG $190
005-0005-10’ 10ft
(3.05m)
Tandem Mode Cable supporting E&M Types I, II,
IV, and V in Tandem Operation. Tandem operation
is typical of switching equipment such as PBXs and
CO switches which can be said to originate traffic. C-Type 96-Pin
Male to Dual
50 Pin Telco
Male Connec-
tors, 24AWG $190